関東化学株式会社 List of Products and Services

"Standard substances" are important reagents that serve as a "ruler" during measurements. Our company is a "JCSS registered business" for various types of pH standard solutions, metal standard solutions, non-metal ion standard solutions, and volatile organic compound standard solutions. Additionally, we are certified as an international MRA-compliant business by IAJapan, which is a member of the mutual recognition agreements (MRA) of ILAC (International Laboratory Accreditation Cooperation) and APLAC (Asia-Pacific Laboratory Accreditation Cooperation), thereby fundamentally supporting the reliability of various testing and calibration results. Our standard solutions come with a certificate bearing the symbol mark of "International MRA-compliant JCSS certified business," indicating that these standard solutions are of a quality accepted internationally. The certificate also specifies the "uncertainty." 【Product Lineup】 ◆ pH standard solutions ◆ Metal standard solution 1000 mg/L ◆ Metal standard solution 100 mg/L ◆ Metal mixed standard solution ◆ Non-metal ion standard solution 2000 mg/L ◆ Non-metal ion standard solution 1000 mg/L ◆ Non-metal ion standard solution 100 mg/L ◆ Organic compound standard solution ◆ Organic compound mixed standard solution For more details, please download the catalog or feel free to contact us.

The standard substances for capacity analysis specified in JIS K 8005 are widely used as reference materials in various fields, including pharmaceuticals and food, for chemical analyses such as neutralization titration, redox titration, complexometric titration, and precipitation titration. The certification documents for certified items include a certified purity value with an associated "uncertainty," making them reliable standard substances for use. The standard substance producer certification program is based on ISO Guide 34 (General requirements for the competence of reference material producers) and ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories), certifying the capabilities of standard substance producers. Our company obtained certification from IAJapan in November 2009 as the first private entity. 【Product Lineup】 ◆ Zinc ◆ Ammonium sulfate ◆ Sodium carbonate ◆ Copper ◆ Potassium hydrogen phthalate ◆ Sodium fluoride ◆ Sodium oxalate ◆ Sodium chloride ◆ Potassium dichromate ◆ Potassium iodate ◆ Standard solution for electrical conductivity measurement For more details, please download the catalog or feel free to contact us.

Our company offers a wide range of "standard solutions and standard stock solutions" that serve as benchmarks for measuring the concentration of various metals. These are recommended for trace metal measurements in various fields. In recent years, we have expanded our selection of standard solutions based on the Measurement Law Traceability System (JCSS), which fundamentally supports the reliability of many testing and calibration results. These JCSS standard solutions are not only traceable to national standards but are also used globally as high-quality standard solutions accepted internationally. 【Measurement Law Traceability System】 This system promotes the establishment of high-precision measurement standards and facilitates the smooth supply of measurement standards that meet the needs of the industry. Measurement standards calibrated and supplied by registered businesses (JCSS registered businesses) are externally proven to be connected to national standards. Our company supplies standard solutions that are traceable to national standards as a "JCSS registered business," including various types of pH standard solutions, metal standard solutions, and non-metal ion standard solutions. We also issue certificates bearing the JCSS mark as proof of reliability, fundamentally supporting the credibility of various testing and calibration results. For more details, please download our catalog or feel free to contact us.

The "Metal Mixed Standard Solution" is a multi-element analysis reagent that can be used in various analyses. Traditionally, quantitative and qualitative analyses were performed for individual elements using methods such as colorimetry and atomic absorption spectrometry. However, in recent years, with the advancement of instrumental analysis, simultaneous analysis using ICP-AES (Inductively Coupled Plasma Atomic Emission Spectrometry) and ICP-MS (Inductively Coupled Plasma Mass Spectrometry) has been implemented. Additionally, simultaneous testing methods have become mainstream in various testing methods, leading to a demand for various mixed standard solutions. Our company offers a range of metal mixed standard solutions to meet your needs. 【Product Lineup】 ◆ JCSS Compliant Metal Mixed Standard Solution 14 types mixed, compliant with the Water Quality Standards (attached documents 5 and 6). ◆ Metal Mixed Standard Solution Available in various combinations. JIS K0101 and K0102 compliant options are also available. ◆ ICP Mixed Standard Solution Available in various combinations. Options for RoHS compliance, equipment tuning, and measurement of metal impurities in pharmaceuticals according to ICH Q3D are available. In addition, our company handles a wide range of metal analysis reagents, non-metal ion mixed standard solutions, leaching solutions, and more, all guaranteed for many items. For more details, please download the catalog or feel free to contact us.

The "Pesticide Standard Solution" provides pesticide mixed standard solutions with compositions tailored to each testing method. The Water Supply Act establishes "water quality standard items" to ensure the safety of drinking water. To complement these water quality standards, water quality management target items have been set, which include pesticides. Among these, Attachment Method 20-2 allows for the simultaneous analysis of approximately 200 types of pesticides and pesticide isomers using the LC/MS method. The preparation of the pesticide mixed standard solution used during this process can be burdensome for users, so we offer a pesticide mixed standard solution that combines as many types of pesticides as possible for convenience. 【Product Lineup】 ◆ Pesticide Mixed Standard Solution for GC and GC/MS ◆ Pesticide Mixed Standard Solution for LC and LC/MS 【Mixing, Combination, and Concentration】 We select combinations that comply with the most common analytical conditions or official methods. Therefore, the mixed composition is optimal for recovery tests and screening analyses according to official methods, making trace testing easy. We conduct analyses including stability tests and have a robust quality assurance system that includes concentration guarantees and expiration date settings. For more details, please download the catalog or feel free to contact us.

We offer a range of "volatile organic compound mixed standard solutions," "internal standard solutions," and "volatile organic compound standard solutions" based on water quality standards. With the recent partial revision of the ministerial ordinance regarding water quality standards, it is now possible to use standard stock solutions that come with a certificate based on the Measurement Act and have the same concentration as those specified in the respective tables. We will continue to stock products that comply with testing methods. As a JCSS registered business, we provide various standard solutions for water quality testing based on the measurement law traceability system. 【Product Lineup】 ◆ Volatile Organic Compound Mixed Standard Solution ◆ Internal Standard Solution ◆ Volatile Organic Compound Standard Solution This lineup allows you to choose according to your analysis needs. In addition, we handle various other standard products for water quality testing. ◇ Pesticide Standard Solutions ◇ Disinfection Byproduct Analysis Standard Solutions ◇ Phenol Analysis Standard Solutions ◇ Surfactant Analysis Standard Solutions ◇ Musty Odor Analysis Standard Solutions ◇ Phthalate Ester Analysis Standard Products ◇ Metal Analysis Standard Solutions ◇ Turbidity, Color, and pH Testing Standard Solutions …etc. For more details, please download the catalog or feel free to contact us.

The "Standard Solution for Disinfection By-Products Analysis" is a standard product based on water quality standards. We provide related reagents such as standard products and internal standard solutions for the disinfection by-products that are subject to water quality standards, including "haloacetic acids," "haloacetonitriles," and "aldehydes." 【Product Lineup】 ◆ Haloacetic Acids Haloacetic Acid 4-Component Mixed Standard Solution Haloacetic Acid Mixed Standard Stock Solution II (9 types) Bromoacetic Acid Standard Stock Solution Bromo-Chloroacetic Acid Standard Solution Chloroacetic Acid Standard Stock Solution Dibromoacetic Acid Standard Product ◆ Haloacetonitriles Haloacetonitrile Mixed Standard Stock Solution (3 types) Haloacetonitrile Mixed Standard Stock Solution II (7 types) Chloroform Standard Stock Solution Dibromoacetonitrile Standard Stock Solution Bromo-Chloroacetonitrile Standard Product Dichloroacetonitrile Standard Stock Solution Trichloroacetonitrile Standard Stock Solution ◆ Aldehydes PFBOA-Aldehyde Mixed Standard Solution (7 types) 1-Chlorodecane Standard Stock Solution Formaldehyde Standard Stock Solution PFBOA-Acetaldehyde Standard Product …etc. Many more are available. For more details, please download the catalog or feel free to contact us.

The "Standard Solution for Phenolic Compounds Analysis" is a standard product based on water quality standards. Our company offers reagents and standard products based on water quality standards. We provide standard products and related reagents used in testing methods targeting the water quality standard items "Phenolic Compounds" and "Alkylphenols." 【Product Lineup】 ◆ Phenolic Compounds - Mixed standard solution of 6 types of phenolic compounds - Acenaphthene-d10 standard stock solution - Phenol standard stock solution - 2,4,6-Trichlorophenol standard stock solution - 2-Chlorophenol standard product - 4-Chlorophenol standard product - 2,4-Dichlorophenol standard product - 2,6-Dichlorophenol standard product - Phenol - 2,4,6-Trichlorophenol standard product ◆ Alkylphenols - Mixed standard stock solution II for alkylphenols (13 types) - Bisphenol A standard product - Bisphenol A-d16 - 4-n-Nonylphenol standard product - 4-n-Nonylphenol-2,3,5,6-d4 - 4-Nonylphenol In addition to these, our company handles various standard products for water quality testing. For more details, please download the catalog or feel free to contact us.

We handle standard products and related reagents used in testing methods for anionic surfactants and nonionic surfactants, which are water quality standard items. We have commercialized a ready-to-use mobile phase for LAS analysis (HPLC-FL) as specified by the Ministry of Health, Labour and Welfare for drinking water testing methods. Linear alkylbenzene sulfonates (LAS) are one of the detergent components and are considered an indicator of pollution in drinking water quality standards due to their role as anionic surfactants that cause foaming. 【Features of the Ready-to-Use Mobile Phase】 ■ Ready to Use ■ Reduced reagent management ■ Cost reduction for waste reagents 【Product Lineup】 ＞ Anionic surfactant standard products and related items ◆ LAS standard stock solution ◆ 0.1 mol/L sodium perchlorate - acetonitrile/water (65:35) ＞ Nonionic surfactant standard products and related items ◆ Heptaoxyethylenedodecyl ether standard solution ◆ Sodium dodecyl sulfate ◆ 0.01 mol/L sodium tetrafluoroborate solution ◆ Tetradecyl dimethyl benzyl ammonium chloride We also handle solid phase columns and LC columns necessary for other analyses. For more details, please download the catalog or feel free to contact us.

The "Mold Odor Substance Analysis Standard Solution" is a standard product based on water quality standards. We provide standard products and related reagents used in testing methods targeting the water quality standard item "mold odor substances." 【Product Lineup】 ◆ Mixed standard solution of 2 types of mold odor substances for JCSS chemical analysis (for water quality testing) ◆ Geosmin standard stock solution ◆ 2-Methylisoborneol standard stock solution ≫ Internal Standards ◆ Geosmin-d3 standard stock solution ◆ 2,4,6-Trichloroanisole-d3 standard stock solution ◆ 2,4,6-Trichloroanisole-d5 standard stock solution We offer a lineup that can be selected according to your analysis needs. In addition, we handle various other standard products for water quality testing. ◇ Pesticide standard solutions ◇ Standard solutions for volatile organic compound analysis ◇ Standard solutions for disinfection byproduct analysis ◇ Standard solutions for phenolic compound analysis ◇ Standard solutions for surfactant analysis ◇ Other organic compound standard solutions ◇ Phthalate ester standard products ◇ Standard solutions for metal analysis ◇ Standard solutions for ion chromatography ◇ Standard solutions for turbidity, color, and pH testing For more details, please download the catalog or feel free to contact us.

We provide standard solutions and related reagents for organic compounds that are subject to water quality standards, utilized in various testing methods. 【Product Lineup】 ◆ Acrylamide monomer standard solution ◆ 1,3-Butadiene standard solution ◆ N,N-Dimethylaniline standard solution ◆ Microcystin LR standard solution ◆ Microcystin RR standard solution ◆ Microcystin YR standard solution ◆ Perfluoro-n-[13C8]octanoic acid ◆ Perfluoro-n-octanoic acid ◆ Perfluoro-[13C8]octanesulfonic acid sodium salt ◆ Perfluoro-1-octanesulfonic acid sodium salt ◆ Styrene monomer standard solution ◆ Vinyl acetate monomer standard solution ◆ Vinyl chloride standard solution ◆ Aniline standard ◆ Dibutyltin dichloride standard ◆ Dibutyltin oxide standard ◆ 17β-Estradiol standard ◆ Quinoline standard ◆ 2,4-Toluenediamine standard ◆ 2,6-Toluenediamine standard ◆ Tributyltin oxide standard ◆ 1,2,3-Trichlorobenzene standard In addition to these, we handle a variety of standard solutions for water quality testing. For more details, please feel free to contact us.

We offer standard products and related reagents used in testing methods targeting "phthalate esters" as part of water quality standards. 【Product Lineup】 ◆ Mixed standard solution of phthalate esters (9 types) ◆ Mixed standard solution II of phthalate esters (9 types) ◆ Mixed internal standard solution of phthalate esters (5 types) ◆ Standard stock solution of di-2-ethylhexyl phthalate ◆ Standard product of benzyl n-butyl phthalate ◆ Benzyl n-butyl phthalate-3,4,5,6-d4 ◆ Standard product of di-n-butyl phthalate ◆ di-n-butyl phthalate-3,4,5,6-d4 ◆ Standard product of di-cyclohexyl phthalate ◆ Standard product of di-2-ethylhexyl adipate ◆ di-2-ethylhexyl adipate-d8 ◆ Standard product of di-2-ethylhexyl phthalate ◆ di-2-ethylhexyl phthalate-3,4,5,6-d4 ◆ diethyl phthalate-3,4,5,6-d4 ◆ Standard product of di-n-pentyl phthalate ◆ Standard product of di-n-propyl phthalate ◆ Phenanthrene-d10 ◆ Standard stock solution of phenanthrene-d10 We also handle various standard products for water quality testing. For more details, please download the catalog or feel free to contact us.

We offer a range of metal mixed standard solutions and metal standard solutions based on water quality standards. Due to a partial amendment of the ministerial ordinance regarding water quality standards, it has become possible to use standard stock solutions that are accompanied by a certificate based on the Measurement Act and have the same concentration as those specified in the respective tables. We will continue to provide products that comply with testing methods. In recent years, our selection of standard solutions based on the Measurement Act traceability system (JCSS) has expanded, fundamentally supporting the reliability of many testing and calibration results. These JCSS standard solutions are not only traceable to national standards but are also used globally in a wide range of fields as standard solutions of internationally accepted quality. In addition to these, we handle various standard materials for water quality testing, including: ◇ Pesticide standard solutions ◇ Standard solutions for volatile organic compound analysis ◇ Standard solutions for disinfection byproduct analysis ◇ Standard solutions for phenolic compound analysis ◇ Standard solutions for surfactant analysis ◇ Other organic compound standard solutions ◇ Standard materials for phthalate ester analysis ◇ Standard solutions for ion chromatography ◇ Standard solutions for turbidity, color, and pH testing etc. For more details, please download our catalog or feel free to contact us.

The "Ion Chromatography Standard Solution" is an ion mixed standard solution and ion standard solution based on water quality standards. Due to a partial revision of the ministerial ordinance regarding water quality standards, it has become possible to use standard stock solutions that are accompanied by a certificate based on the Measurement Act and have the same concentration as those specified in the respective tables. We will continue to offer products that comply with testing methods. In recent years, the inspection of non-metal ions has become mainstream with the widespread use of simultaneous analysis using IC (Ion Chromatography). Our company provides various non-metal ion mixed standard solutions that comply with different regulations. 【Product Lineup】 ◆ Cation Mixed Standard Solution ◆ Anion Mixed Standard Solution ◆ JCSS Cation Standard Solution ◆ JCSS Anion Standard Solution ◆ Elution Solution In addition to these, our company also handles various standard products for water quality testing. ◇ Pesticide Standard Solution ◇ Volatile Organic Compound Analysis Standard Solution ◇ Disinfection Byproduct Analysis Standard Solution ◇ Phenolic Compound Analysis Standard Solution ◇ Surfactant Analysis Standard Solution ◇ Musty Odor Analysis Standard Solution ◇ Phthalate Ester Analysis Standard Product …etc For more details, please download the catalog or feel free to contact us.

"Related products for turbidity measurement" are reagents used in testing methods targeting the water quality standard item "turbidity." Traditionally, kaolin standard solutions were used for turbidity measurement; however, due to the increasing precision of measuring devices and the need to address pathogenic microorganisms such as Cryptosporidium, measurements in low turbidity ranges, such as 0.1 NTU, are now required. The water quality standards for drinking water allow for measurements in low turbidity ranges, and polystyrene-based particle suspensions have been adopted as turbidity standard solutions with less variability between batches compared to kaolin. Measurement methods include visual turbidity methods, transmitted light measurement methods, scattered (reflected) light measurement methods, integrating sphere photometric methods, and particle counting methods, which are used for device calibration and as turbidity standard series. 【Product Lineup】 ≫ Polystyrene Turbidity standard solution II for water quality testing (100 NTU) ≫ Formazin Formazin standard solution (400 NTU) ≫ Kaolin Turbidity standard solution for turbidity testing (100 NTU) Turbidity standard solution for turbidity testing (1000 NTU) In addition to these, we offer a variety of standard products for water quality testing. ◇ Pesticide standard solutions ◇ Metal analysis standard solutions …etc. For more details, please download the catalog, refer to our published page, or feel free to contact us.

"Colorimetric Measurement Related Products" are reagents used in testing methods targeting the water quality standard item "color." Our company has traditionally offered reagents and standard products based on water quality standards. The "Color Standard Solution (1000 degrees)" is prepared by dissolving potassium chloroplatinate and cobalt chloride in hydrochloric acid. This stock solution is then step-diluted to create a color standard series, which is tested using colorimetric methods and transmittance measurement methods. In addition to this, our company also handles various standard products for water quality testing. ◇ Pesticide standard solutions ◇ Standard solutions for volatile organic compound analysis ◇ Standard solutions for disinfection byproduct analysis ◇ Standard solutions for phenolic compound analysis ◇ Standard solutions for surfactant analysis ◇ Standard solutions for musty odor analysis ◇ Other organic compound standard solutions ◇ Phthalate ester standard products ◇ Standard solutions for metal analysis ◇ Standard solutions for ion chromatography ◇ Standard solutions for turbidity, color, and pH testing For more details, please refer to our company’s published page or feel free to contact us.

The "pH Measurement Related Products" are reagents used in testing methods targeting the water quality standard item "pH value." 【Product Lineup】 Carbonate pH Standard Solution (Type 2) pH 10.01 Oxalic Acid pH Standard Solution (Type 2) pH 1.68 Neutral Phosphate pH Standard Solution (Type 2) pH 6.86 Neutral Phosphate pH Standard Solution (Type 1) pH 6.865 Phosphate pH Standard Solution (Type 2) pH 7.41 Phthalate pH Standard Solution (Type 1) pH 4.008 Phthalate pH Standard Solution (Type 2) pH 4.01 Boric Acid pH Standard Solution (Type 2) pH 9.18 *The above pH standard solutions are traceable to specific standard substances (national measurement standards) based on Article 134 of the Measurement Act. 【Packaging】 ◇2L Cost reduction through large capacity ◇500mL ◇100mL ☆Recommended☆ - Single-use, so no need to verify stability after opening - Wide-mouth bottle allows direct insertion of pH electrodes, saving time as there is no need for transfer - No worries about contamination. There is no risk of cross-contamination or degradation after opening For more details, please download the catalog or feel free to contact us.

The "Standard Products for the Analysis of Organic Tin Compounds" are reagents for environmental analysis. Organic tin compounds are used as antifouling paints and agents for ship bottoms and fishing nets, but they are highly toxic and do not decompose in the environment, leading to marine and water pollution issues. Our company offers a range of products including "Tri-n-butyl tin chloride standard solution," "Triphenyl tin chloride standard solution," and other organic tin compounds, which we would like to introduce below. 【Product Lineup】 ◆ n-Butyl tin trichloride standard ◆ Dibutyl tin dichloride standard ◆ Dibutyl tin oxide standard ◆ n-Octyl tin dichloride standard ◆ Triphenyl tin acetate standard ◆ Triphenyl tin hydroxide standard ◆ n-Octyl tin trichloride standard ◆ Tetrabutyl tin standard ◆ Tetrabutyl tin-d36 ◆ Tributyltin chloride-d27 ◆ Tri-n-butyl tin chloride standard solution ◆ Tributyltin oxide standard ◆ Triphenyl tin chloride standard ◆ Triphenyl tin chloride standard solution In addition, we also handle a wide range of reagents for environmental analysis related to pesticide residue testing, PCB testing, special grade reagents, and standard products. For more details, please download our catalog or feel free to contact us.

Regarding azo dyes that form specific amines (24 types) which are pointed out to have carcinogenic properties, measures are being taken to encourage restraint in their use in textile products and other areas from the perspective of preventing health damage. Our company offers a wide range of mixed standard solutions and standards used for the analysis of these specific amines, as well as the reagents necessary for this testing. In JIS L1940 (Textile Products - Quantitative Method for Specific Aromatic Amines Derived from Azo Dyes), benzidine-d8 is designated as the internal standard solution for amines eluted in the latter part of the analysis. On the other hand, "benzidine and its salts" fall under harmful substances prohibited from manufacturing under the Industrial Safety and Health Act, and manufacturing, importing, or using them in excess of 1% (weight%) is prohibited. We have begun handling products from LGC Standards Ltd. (Dr. Ehrenstorfer) as "standard solutions not exceeding 1% (weight%)". For more details, please download the catalog or feel free to contact us.

The "Standard Solution for PAHs Analysis" is a reagent for environmental and food analysis. PAHs (polycyclic aromatic hydrocarbons) are a general term for compounds that contain two or more benzene rings and originate from sources such as the combustion of fossil fuels and organic matter. Some PAHs have been reported as carcinogenic compounds. Our company offers a wide range of products, including PAHs standards and stable isotopes, as well as Nitro-PAHs, Amino-PAHs, Hydroxy-PAHs, and Halogen-PAHs. We provide mixed standard solutions and standard kits. In addition to our products, we also handle products from Accu Standard, Dr. Ehrenstorfer, and C/D/N Isotopes, offering a rich lineup. You can choose according to your analysis needs. For more details, please download the catalog or feel free to contact us.

The "VOCs Analysis Standard Solution" is a reagent for indoor environmental measurement. The Ministry of Health, Labour and Welfare has established guidelines for indoor air pollution, including reference values for the indoor concentration of numerous chemical substances and standard measurement methods. The reference values for indoor concentration continuously change qualitatively and quantitatively due to the evolution of household products, leading to the ongoing addition and revision of substances. Our company sells standard solutions and internal standard solutions related to the measurement of indoor concentration values. Please make use of them for measuring indoor environments. 【Product Lineup】 ◆ VOCs Mixed Standard Solution IV (10-component mixture) ◆ VOCs Mixed Standard Solution (45-component mixture) ◆ Tetradecane Standard ◆ Toluene-d8 Standard Solution For more details, please feel free to contact us.

The "Standard Solution for Analyzing Aldehydes" is for measuring air pollutants. Several aldehydes are listed in regulations and guidelines related to chemical substances in indoor air pollution, specific odor substances under the Odor Prevention Law, and harmful air pollutants. The analysis of these aldehydes is conducted by collecting them using a 2,4-DNPH impregnated cartridge adsorbent and derivatizing them into aldehyde-DNPH compounds. The DNPH-derivatized compounds are then separated and analyzed using GC or LC equipment. We provide standard substances and internal standards used in the "Manual for Measuring Harmful Air Pollutants" (Revised March 2019) published by the Ministry of the Environment, specifically in Chapter 1 of Part 4, "Measurement Methods for Formaldehyde and Acetaldehyde in the Atmosphere." For more details, please download the catalog or feel free to contact us.

To prevent water pollution and damage to plants and animals caused by pesticides used at golf courses, the use of pesticides must be strictly managed. Guidelines regarding the prevention of water pollution from pesticides used at golf courses and the protection of the living environment for aquatic plants and animals have been established (Notification No. 2003271 from the Ministry of the Environment, dated March 27, 2020). ◆ Water pollution guideline value (10 times the pesticide registration standard value related to water pollution) ◆ For pesticides that do not have a water pollution standard value, those for which a separate water pollution guideline value in drainage has been established ◆ Aquatic guideline value (10 times the pesticide registration standard value related to damage prevention for aquatic plants and animals) The Ministry of the Environment has published analytical methods for pesticides with established registration standard values, which are being updated sequentially. Our company offers standard products compatible with individual analytical methods and multi-component simultaneous analytical methods. For more details, please download the catalog or feel free to contact us.

The "chlorinated paraffin standard" is a reagent for environmental analysis. Our company has added chlorinated paraffin standards from the Dr. Ehrenstorfer brand manufactured by LGC to our lineup. 【New Product】 -NEW- ◆ Medium-chain and long-chain chlorinated paraffins Chlorinated paraffins with a carbon number of 14 to 17 are referred to as medium-chain chlorinated paraffins (MCCP), while those with a carbon number of 17 or more are called long-chain chlorinated paraffins (LCCP). ◆ Short-chain chlorinated paraffins (SCCP) These were used as plasticizers in polyvinyl chloride for metalworking oils and wire coatings, but due to their persistence, high bioaccumulation potential, and toxicity to humans and organisms, it was decided at the 8th Conference of the Parties (COP8) of the POPs Convention held in April 2017 to add them to Annex A (elimination) of the convention. Additionally, in Japan, they were designated as Class I specified chemical substances under the Chemical Substances Control Law in April 2018, and their manufacture and import are generally prohibited. Furthermore, in 2008, they were listed as a new substance proposed for addition under the RoHS Directive and identified as a substance of very high concern under REACH, with regulations tending to be strengthened. For more details, please download the catalog or feel free to contact us.

"Dioxins/Polychlorinated Biphenyls (PCBs) standard products" are reagents for environmental analysis. The government has provided guidelines to "reduce the concentration of dioxins emitted from municipal waste incinerators to the same level as the strictest in Europe," leading to strengthened regulations on dioxins and PCBs. Our company offers a variety of standard substances required for dioxin and PCB analysis to meet the needs of customers involved in environmental analysis. For example, we provide individual standard products for Mass Labelled PCDFs, PCDDs, and PCBs used as internal standards, as well as native PCDFs, PCDDs, and PCBs. We also accept requests for Custom Mixtures Solutions tailored to the specific purposes of our users. For more details, please download the catalog or feel free to contact us.

The 'Standard Solutions for Testing Instruments and Container Packaging' are reagents for food analysis. In the standards and criteria for instruments and container packaging under the Food Sanitation Act, analytical methods and standards are established for volatile substances, organic substances such as phthalate esters, and inorganic substances such as harmful metals. Our company offers a wide range of standard products that correspond to these testing methods. 【Product Lineup】 ◆ Volatile Substance Mixed Standard Solution ◆ Phthalate Ester Mixed Standard Solution For more details, please download the catalog or feel free to contact us.

Mycotoxins are toxins produced by molds that primarily attach to imported goods such as grains and spices, as well as animal feed. Reports have indicated their acute toxicity and carcinogenicity to humans and animals, leading to increased concern in food and feed inspections. Currently, regulations and standards exist for aflatoxins, deoxynivalenol and nivalenol, and patulin, with discussions underway to expand the scope of regulation further. Romer Labs, which handles the "Biopure series" of mycotoxin standard products, has obtained ISO/IEC 17025 and ISO 17034 accreditation. We are now offering certified reference materials and standard materials manufactured in accordance with ISO 17034 for sale. Additionally, we accept orders for custom mixed standard solutions with original compositions. 【Products Offered】 ◆ ISO 17034 Certified Reference Materials ◆ ISO 17034 Standard Materials ◆ Mycotoxin Mixed Standard Solutions ◆ Mycotoxin Standard Solutions and Standard Products ◆ Stable Isotope Labeled Standard Solutions ◆ Ergot Alkaloid Standard Solutions ◆ Composition Standard Samples for Proficiency Testing (QCM) For more details, please download the catalog or feel free to contact us.

The types of shellfish toxins are mainly classified into paralytic shellfish toxin, diarrheic shellfish toxin, amnesic shellfish toxin, and neurotoxic shellfish toxin. The toxic contamination of bivalves due to these toxins has become a significant issue for food safety and health crisis management in marine areas around the world, including Japan. Additionally, on March 6, 2015, a notification regarding the handling of shellfish contaminated by paralytic shellfish toxins was issued, and the introduction of instrumental analysis for the diarrheic shellfish toxin group, Okadaic acid, along with its regulatory limits, has further heightened the necessity for shellfish toxin analysis. Our company handles shellfish toxin standard materials from the National Research Council Canada and Laboratorio CIFGA S.A. in Spain, and we would like to inform you about this. Furthermore, since April 2016, the National Metrology Institute of Japan (NMIJ) has started distributing shellfish toxin CRM (Certified Reference Materials). For more details, please download the catalog or feel free to contact us.

The positive list system based on the Food Sanitation Act regarding pesticide residues, veterinary drugs, and feed additives in food has been implemented since May 29, 2006. Our company offers a range of standard products that comply with the positive list system, including pesticide mixed standard solutions for GC/MS and LC/MS that correspond to simultaneous testing methods, as well as pesticide mixed standard solutions for individual testing methods for GC and LC. The standard products available are primarily our manufactured products and those from Dr. Ehrenstorfer (imported), providing a rich selection. The standard products are packaged with an analysis report (analysis table) attached, which allows you to confirm the purity of the standard products. Additionally, information on physical properties other than purity is also included in the analysis table for your reference. The brochure lists the standard products that are subject to the positive list system of the Ministry of Health, Labour and Welfare, which can be used as a reference for analysis targets. For the latest information on standard products, prices, etc., please use our product information search site. For more details, please download the catalog or feel free to contact us.

We offer a wide range of standard products and mixed standard solutions for food analysis. ≫ Standard Products for Food Analysis We have a broad selection of standard products for physicochemical analysis in food hygiene testing, including lipids, vitamins, contaminants, colorants, and veterinary pharmaceuticals. ≫ Mixed Standard Solutions for Food Analysis Under the positive list system, many veterinary pharmaceuticals are subject to testing, and individual testing methods are mainstream in notification testing methods (LC). In recent years, simultaneous analysis methods using liquid chromatography-mass spectrometry (LC/MS) and tandem mass spectrometry (LC/MS/MS) have been adopted. We provide mixed standard solutions for food analysis that comply with the residue standard testing guidelines for veterinary pharmaceuticals. For more details, please download our catalog or feel free to contact us.

A positive list system based on the Food Sanitation Act regarding pesticide residues, veterinary drugs, and feed additives in food has been implemented since May 29, 2006. Our company offers standard products that comply with the positive list system, as well as pesticide mixed standard solutions for GC/MS and LC/MS that correspond to simultaneous testing methods (for agricultural products and livestock/aquatic products), and pesticide mixed standard solutions for individual testing methods for GC and LC. We have been supplying a wide range of pesticide mixed standard solutions even before the implementation of the positive list system. In the production of these mixed standard solutions, each substance is weighed using standard materials (active ingredients) as raw materials and mixed to a composition in accordance with simultaneous testing methods. Since many pesticides and veterinary drugs are unstable substances, we conduct our own stability tests regarding concentration guarantees, and we have received high reliability, so you can use our products with confidence. For more details, please download the catalog or feel free to contact us.

＼Rich Lineup／ Please use it for various water quality tests! We offer reagents and standards based on the water quality management target setting items and water quality standards under the Water Supply Act. Due to partial amendments to the ministerial ordinance regarding water supply standards, it has become possible to use standard stock solutions of the same concentration as those specified in the respective tables, with a certificate based on the Measurement Act attached to the reagents. In addition, we also have pre-prepared reagents. Since they are pre-prepared, they are ready to use, reducing reagent management and cutting costs for waste reagents. ▶ Pesticide standard solutions ▶ Standard solutions for volatile organic compound analysis ▶ Standard solutions for disinfection byproduct analysis ▶ Standard solutions for phenolic compound analysis ▶ Standard solutions for surfactant analysis ▶ Standard solutions for musty odor substance analysis ▶ Other organic compound standard solutions ▶ Phthalate ester standard materials ▶ Standard solutions for metal analysis ▶ Standard solutions for ion chromatography ▶ Standard solutions for turbidity, color, and pH testing For more details, please download the catalog or feel free to contact us.

＼Rich Lineup／ Please use it for various environmental analyses! ▶Standard materials for organic tin compound analysis We offer standard materials for organic tin compounds, which are highly toxic and a cause of marine pollution. ▶Standard materials for specific aromatic amines and dyes We have a wide range of standard materials and related products for the analysis of specific amines that are suspected of being carcinogenic. ▶Standard solutions for PAHs analysis We handle various products, including PAHs standard materials and stable isotopes. ▶Standard solutions for VOCs analysis We provide mixed standard solutions and internal standard substances that comply with measurement methods for residential performance indicators. ▶Standard solutions for aldehyde analysis We offer related products used for measuring formaldehyde/aldehydes. ▶Standard solutions for golf course pesticides We provide products that comply with standard analysis methods for effluent water, individual analysis methods, and multi-component simultaneous analysis methods. ▶Standard materials for chlorinated paraffins We offer chlorinated paraffin standard materials from the Dr. Ehrenstorfer brand by LGC. ▶Standard materials for dioxins/PCBs We have standard substances necessary for the analysis of dioxins and PCBs.

＼Rich Lineup／ Please make use of it for various food analyses! ▶Standard Solutions for Testing Equipment and Packaging We offer a wide range of standard products that comply with the standards and criteria for equipment and packaging under the Food Sanitation Act, suitable for testing volatile substances, organic substances, and inorganic substances. ▶Standard Solutions for Mycotoxin Analysis Centered around Romer Labs' mycotoxin standards, we also offer our own products! Please utilize them for various research purposes. ▶Standard Substances for Shellfish Toxin Analysis The toxic contamination of bivalves is a significant issue for food safety and health crisis management in marine areas worldwide, including Japan, increasing the necessity for shellfish toxin analysis. ▶Standard Products for Food Additive Analysis We provide pesticide mixed standard solutions for GC and LC that comply with simultaneous testing methods and individual testing methods. ▶Standard Products for Fatty Acid Analysis We handle necessary standard products for the analysis of trans fatty acids found in margarine and shortening. ▶Mixed Standard Solutions for Veterinary Drug Analysis We offer standard products for food analysis aimed at the analysis of veterinary drugs in food. ▶Pesticide Mixed Standard Solutions for Positive List System Simultaneous Testing Methods We provide pesticide mixed standard solutions for GC and LC that comply with simultaneous testing methods and individual testing methods.

Nitrosamines are a group of compounds characterized by the presence of one nitroso group attached to an amine nitrogen, and they are known to be carcinogenic substances. It has been reported that they can be generated from foods containing nitrites and from chlorine treatment in water purification and sewage treatment. In Japan, NDMA is classified as a "item for consideration" in the drinking water quality standards. In recent years, the detection of nitrosamines from pharmaceuticals and active pharmaceutical ingredients both domestically and internationally has become a global issue in the pharmaceutical field, and in Japan, efforts are being made to establish management targets for nitrosamines in pharmaceuticals and to conduct voluntary inspections. For more details, please download the catalog or feel free to contact us.

It contains total protein in accordance with the Notification Law (Consumer Affairs Agency) and can be used as a standard substance for food allergen analysis using the LC-MS/MS method. For more details, please download the catalog or feel free to contact us.

The "Standard for Plant Toxin Analysis" is a standard used for the analysis of toxins that cause poisoning symptoms. Plant toxins are one of the physiologically active substances that have been widely used by humans for a long time. In recent years, with the increasing opportunities to utilize wild plants in pharmaceuticals and food, cases of poisoning have also increased. Analyzing the toxins that cause poisoning symptoms is important for taking appropriate measures against these symptoms. Therefore, Kanto Chemical offers natural product analysis standards from PhytoLab (Germany), which has obtained ISO17025/ISO17034 accreditation. For more details, please download the catalog or feel free to contact us.

"Functional Food Analysis Standard Products" are essential standard products for confirming the safety and efficacy of food. The functional food labeling system allows businesses to display functionality on food products if they report essential information regarding safety and functionality (such as scientific evidence) to the Consumer Affairs Agency. Safety and efficacy are the responsibility of the business, and the importance of managing safety and efficacy by businesses and related administrative agencies is increasing. Kanto Chemical offers a wide range of standard products suitable for quality control analysis, primarily from PhytoLab (Germany). PhytoLab is accredited with ISO17025/ISO17034 and provides high-quality analytical standard products that are indispensable for confirming the safety and efficacy of food. For more details, please download the catalog or feel free to contact us.