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Near-infrared spectrometers are analytical techniques widely used for quantitative analysis of raw material substances in both research and industrial applications. Metrom's white paper clarifies the similarities and differences between decentralized analyzers and Fourier transform (FT) analyzers of near-infrared spectrometers.

• Other inspection equipment and devices

It can also be used as training material for beginners conducting ion chromatography for the first time.

• Other environmental analysis equipment

Not only ion chromatography, but also terms used in chromatography in general are explained. It is recommended for beginners in ion chromatography.

• Ion Chromatography
• Analytical Equipment and Devices
• Water quality testing

Optimizing Methane Production in Biogas Fermentation Tanks: Measurement of FOS/TAC Ratio Using a Titration Device Application Using the Metrohm Automatic Titrator Eco Titrator Monitoring the ratio of total inorganic carbon (TAC) to free organic acids (FOS) is crucial for optimizing the fermentation process within a bioreactor (biogas fermentation tank). Maintaining a stable optimal TAC/FOS ratio within the bioreactor maximizes methane production, thereby maximizing the profitability of the biogas plant. This white paper (WP) provides a detailed explanation of the chemicals involved in the biogas production process and the method for measuring the FOS/TAC ratio using a titration device.

• Analytical Equipment and Devices
• Biogas

[Technical Data] Ion Chromatography Basics: Pre-treatment Edition Table of Contents Pre-treatment for Ion Analysis 1.1 Purpose of Pre-treatment 1.2 Is Pre-treatment Necessary? 1.3 Influence of Coexisting Components 1.4 Is Pre-treatment for Ion Chromatography Special? Sample Dissolution and Extraction 2 Dissolution 3 Extraction 3.1 Unit Operations Used in Extraction 3.2 Extraction of Ions from Oil Samples by Liquid-Liquid Extraction Method 3.3 Extraction of Ions from Solid Residues by Ultrasonic Extraction Method 3.4 Extraction of Ions from Organic Samples by Organic Solvent Dissolution - Liquid-Liquid Extraction Method 3.5 Extraction of Ions from Food Samples 4 Dissolution by Combustion Method 5 Distillation Total of 20 pages (including cover)

• Analytical Equipment and Devices

**Basic Principles of Ion Chromatography: Pre-treatment Edition** Table of Contents Pre-treatment for Ion Analysis 1.1 Purpose of Pre-treatment 1.2 Is Pre-treatment Necessary? 1.3 Influence of Coexisting Components 1.4 Is Pre-treatment for Ion Chromatography Special? Sample Dissolution and Extraction 2 Dissolution 3 Extraction 3.1 Unit Operations Used in Extraction 3.2 Extraction of Ions from Oil Samples by Liquid-Liquid Extraction Method 3.3 Extraction of Ions from Solid Residues by Ultrasonic Extraction Method 3.4 Extraction of Ions from Organic Samples by Organic Solvent Dissolution - Liquid-Liquid Extraction Method 3.5 Extraction of Ions from Food Samples 4 Dissolution by Combustion Method 5 Distillation Total of 20 Pages (Including Cover)

• Analytical Equipment and Devices

This is an introductory technical booklet explaining what can be done with near-infrared spectrometers (NIR) without using complicated formulas. It can be used as a text for those measuring with a near-infrared spectrometer for the first time, as well as for supervisors providing guidance. (PDF, 13 pages)

• Other inspection equipment and devices

The basics and precautions for preparing elution solutions for ion chromatography are described very simply. It can also be used as training material for those conducting ion chromatography for the first time.

• Other environmental analysis equipment

"Basics of Ion Chromatography: Anion Analysis Edition" Content 1) Anion Analysis and Official Methods Content 2) Basic Operations and General Precautions for Anion Analysis Content 3) Measurement Examples of Anion Analysis

• Analytical Equipment and Devices

Near-infrared spectrometer Technical Data 16 Petroleum Gasoline Fuel Pyrolysis Gasoline Pyrolysis gasoline (Pygas) is a byproduct of ethylene production and is unsuitable as a motor fuel due to the presence of undesirable conjugated diolefins. To eliminate this drawback, it is necessary to reduce the olefin content to below 2 mg/g using a Selective Hydrogenation Unit (SHU). The diene value (or Maleic Anhydride Value (MAV)) is typically determined by wet chemical analysis through the Diels-Alder reaction (UOP326-17). This wet chemical analysis method requires trained analysts to perform it over several hours. Near-infrared spectroscopy (NIRS) contrasts with this chemical analysis method and can be applied as a cost-effective, high-speed analytical technique to determine the diene value in pyrolysis gasoline.

• Near-infrared spectrophotometer
• Biodiesel
• Spectroscopic Analysis Equipment

Near-Infrared Analyzer Technical Data 16 Petroleum Gasoline Fuel Pyrolysis Gasoline Pyrolysis gasoline (Pygas) is a byproduct of ethylene production and is unsuitable as motor fuel due to the presence of unwanted conjugated diolefins. To eliminate this drawback, it is necessary to reduce the olefin content to below 2 mg/g using a Selective Hydrogenation Unit (SHU). The diene value (or Maleic Anhydride Value (MAV)) is typically determined by wet chemical analysis through the Diels-Alder reaction (UOP326-17). This wet chemical analysis method requires trained analysts to perform it over several hours. Near-Infrared Spectroscopy (NIRS) contrasts with this chemical analysis method and can be applied as a cost-effective, rapid analytical technique for determining the diene value in pyrolysis gasoline.

• Spectroscopic Analysis Equipment
• Demand Monitoring

【Near Infrared Spectroscopy Technical Document 15 Petroleum Gasoline Fuel】 The measurement of key quality parameters of gasoline, such as Research Octane Number (RON, ASTM D2699-19), Motor Octane Number (MON, ASTM D2700-19), Anti-Knock Index (AKI), aromatic content (ASTM D5769-15), and density, required several different analytical methods, which are labor-intensive and require skilled technicians. This application note demonstrates a cost-effective analytical method for analyzing multiple parameters of gasoline simultaneously using the XDS RapidLiquid Analyzer near-infrared spectrometer.

• Near-infrared spectrophotometer
• Spectroscopic Analysis Equipment
• Lubricants

【Near Infrared Analyzer Technical Data 15 Petroleum Gasoline Fuel】 The measurement of key quality parameters of gasoline, including Research Octane Number (RON, ASTM D2699-19), Motor Octane Number (MON, ASTM D2700-19), Anti-Knock Index (AKI), aromatic content (ASTM D5769-15), and density, required several different analytical methods, which were labor-intensive and required skilled technicians. This application note demonstrates a cost-effective analytical method for analyzing multiple parameters of gasoline simultaneously using the XDS RapidLiquid Analyzer, which measures in the visible-near infrared region (Vis-NIR).

• Near-infrared spectrophotometer
• Spectroscopic Analysis Equipment
• Lubricants

Near Infrared Spectrometer Technical Data 14 Petroleum, Light Oil, Diesel Oil Cetane number (ASTM D613), flash point (ASTM D56), cloud point (CFPP, ASTM D6371), 95% distillation temperature (D95, ISO 3405), and viscosity at 40°C (ISO 3104) are important parameters for determining the quality of light oil. The testing methods for determining these parameters differ, making them time-consuming and requiring a certain level of expertise. This application note demonstrates that using the XDS RapidLiquid Analyzer to obtain spectral information in the visible-near infrared (Vis-NIR) range for determining important parameters in light oil allows for rapid analysis of multiple components in a single measurement, making it a cost-effective analytical method. With Vis-NIR spectroscopy, it is possible to analyze diesel within one minute without sample pretreatment or the use of chemical reagents.

• Near-infrared spectrophotometer
• Spectroscopic Analysis Equipment
• Biodiesel

Near Infrared Analyzer Technical Data 14 Petroleum, Light Oil, Diesel Oil Cetane number (ASTM D613), flash point (ASTM D56), cold filter plugging point (CFPP, ASTM D6371), 95% distillation temperature (D95, ISO 3405), and viscosity at 40°C (ISO 3104) are important parameters for determining the quality of light oil. The testing methods for determining these parameters differ, making them labor-intensive and requiring a certain level of expertise. This application note demonstrates that using the XDS RapidLiquid Analyzer to obtain spectral information in the visible-near infrared (Vis-NIR) spectral range for determining key parameters in light oil allows for rapid analysis of multiple components in a single measurement, making it a cost-effective analytical method. With Vis-NIR spectroscopy, it is possible to analyze diesel within one minute without sample pretreatment or the use of chemical reagents.

• Near-infrared spectrophotometer
• Biodiesel
• Lubricants

【Near Infrared Spectrometer Technical Data 9 Petrochemical Fiber】 To mold polypropylene (PP) resin into the desired shape, it must first be melted, making flow properties a crucial characteristic that influences the manufacturing process. One of the parameters that represent flow properties is the Melt Index (MI), also known as Melt Flow Rate (MFR). This measures the mass of material extruded from a die within a specified time (ASTM D1238). The standard procedure requires many tasks, such as sample packaging, preheating, and cleaning. Visible near-infrared spectroscopy, which does not require sample pretreatment or chemicals, enables MFR analysis in under one minute.

• Other inspection equipment and devices
• plastic
• Near-infrared spectrophotometer

[Near Infrared Spectrometer Technical Data 8 Petrochemicals Fibers] This document presents various application possibilities of the Metrom's visible-near infrared (Vis-NIR) analyzer, which simultaneously measures multiple quality control parameters of nylon. By using this unique analytical technique, significant cost and time savings can be achieved compared to standard reference analysis.

• fiber
• Spectroscopic Analysis Equipment

Near Infrared Spectrometer Technical Data 11 Petrochemical Resin Urethane Resin By using a near infrared spectrometer (NIR), analysis can be performed in its original form without sample pretreatment. Due to its multi-component capability, NIR can simultaneously measure multiple quality parameters in a very short time. As a result, it significantly reduces the time compared to conventional analytical methods. Moreover, this analytical technique allows for analysis without the use of chemical reagents such as solvents or reagents, which can greatly reduce the operating costs of quality control laboratories.

• plastic
• Near-infrared spectrophotometer
• Spectroscopic Analysis Equipment

It is described very simply, so it can also be used as training material for beginners handling ion chromatography for the first time. In addition, a variety of technical materials related to ion chromatography are publicly available. ■ Technical Material Lineup - Basics of Ion Chromatography: Application Edition (What can be measured) - Basics of Ion Chromatography: Principle Edition - Basics of Ion Chromatography: History Edition - Basics of Ion Chromatography: Column Edition ver.2 - Basics of Ion Chromatography: Anion Analysis Edition - Basics of Ion Chromatography: Qualitative and Quantitative Edition - Basics of Ion Chromatography: Sample Preparation Edition - Basics of Ion Chromatography: Terminology Edition

• Ion Chromatography
• Analytical Equipment and Devices
• Water quality testing

What is ion chromatography? It starts with this question and provides a very easy-to-understand explanation. It is also ideal as training material for those learning about ion chromatography for the first time.

• Other environmental analysis equipment

Even if separation is possible, you cannot reach the truth without proper analysis. This technical booklet explains the analysis methods for ion chromatography measurement results (chromatograms) clearly, starting from the definitions of qualitative and quantitative analysis. It is also a useful reference for those using analytical instruments other than ion chromatography. (Total of 17 pages) It is available for free download.

• Analytical Equipment and Devices
• Ion Chromatography
• Water quality testing

Near Infrared Spectroscopy Technical Data 17 Petroleum Petrochemicals Gasoline Polymers Near Infrared Spectroscopy (NIRS) is a widely used quantitative analytical method in various industrial settings and laboratories. This white paper introduces the method development workflow for quantitative analysis in accordance with ASTM E1655.

• Other polymer materials
• plastic
• Spectroscopic Analysis Equipment

【Near Infrared Spectrometer Technical Data 10 Petrochemicals】 Measuring the density of polyethylene (PE) (ASTM D792) is challenging due to the difficulty in achieving reproducible results with standard measurement procedures. This application note demonstrates the determination of the specific gravity of PE by measurement with a near-infrared spectrometer. By using visible-near-infrared spectroscopy, which does not require sample pretreatment or chemical reagents, large heterogeneous samples can be analyzed in about one minute.

• plastic
• Near-infrared spectrophotometer
• Spectroscopic Analysis Equipment

Near Infrared Spectrometer Technical Data 13 Petrochemical Polyurethane Polymer Polyurethane is a polymer widely used in consumer and industrial products. Reliable measurement results for the isocyanate content in polyurethane products can be obtained using a near-infrared analyzer. The measurement takes less than 30 seconds, allowing for a quick response to changes in product quality when using near-infrared spectroscopy.

• Other polymer materials
• plastic
• Spectroscopic Analysis Equipment

This document explains the quantitative analysis of diethylene glycol (DEG), isophthalic acid (IPA), intrinsic viscosity (IV), and acid value (TAN) contained in polyethylene terephthalate (PET), a type of polyester. Traditional chemical analysis using conventional reagents requires time to obtain results and relies on the skill of the operator, whereas near-infrared spectrometers can be operated easily and quickly without the need for special skills.

• plastic
• Other polymer materials
• Spectroscopic Analysis Equipment

Near-infrared analysis (NIRS) is a quantitative analytical method widely used in various industrial sites and laboratories. This white paper aims to describe the method development workflow for quantitative analysis in accordance with ASTM E1655.

• Spectroscopic Analysis Equipment
• plastic
• Composite Materials

Near Infrared Analyzer Technical Data 13 Petrochemical Polyurethane Polymer Polyurethane is a polymer widely used in consumer and industrial products. Using a near-infrared analyzer, reliable measurement results can be obtained for the isocyanate content in polyurethane products. The measurement takes less than 30 seconds, allowing for a quick response to changes in product quality when using near-infrared analysis.

• plastic
• Other polymer materials
• Spectroscopic Analysis Equipment

Near Infrared Analyzer Technical Data 11 Petrochemical Resin Polyurethane Resin By using a near-infrared analyzer (NIR), analysis can be performed in its original form without sample pretreatment. Due to its multi-component capability, NIR can simultaneously measure multiple quality parameters in a very short time. As a result, it significantly reduces the time compared to conventional analysis methods. Furthermore, this analytical method allows for analysis without the use of solvents or reagents, which can greatly reduce the operating costs of QC labs.

• plastic
• Spectroscopic Analysis Equipment
• Other polymer materials

This document explains the quantitative analysis of diethylene glycol (DEG), isophthalic acid (IPA), intrinsic viscosity (IV), and acid value (TAN) contained in polyethylene terephthalate (PET), a type of polyester. Traditional chemical analysis using reagents requires time to obtain results and relies on the skill of the operator, whereas near-infrared analysis allows for simple and rapid measurements without the need for special skills.

• plastic
• Other polymer materials
• Spectroscopic Analysis Equipment

【Near Infrared Analyzer Technical Data 10 Petrochemicals】 Measuring the density of polyethylene (PE) (ASTM D792) is challenging due to the difficulty in achieving reproducible results using standard measurement procedures. This application note demonstrates the determination of the specific gravity of PE by measurement with a near-infrared analyzer. By using a visible-near-infrared analytical method that does not require sample pretreatment or chemical reagents, it is possible to analyze large heterogeneous samples in under one minute.

• Spectroscopic Analysis Equipment
• Near-infrared spectrophotometer
• plastic

【Near Infrared Analyzer Technical Data 9 Petrochemicals Fibers】 To mold polypropylene (PP) resin into the desired shape, it must first be melted, making flow properties a crucial characteristic that influences the manufacturing process. One of the parameters that represent flow properties is the Melt Index (MI), also known as Melt Flow Rate (MFR). This measures the mass of material extruded from a die within a specified time (ASTM D1238). The standard procedure requires many tasks, such as packaging the sample, preheating, and cleaning. Visible near-infrared spectroscopy, which does not require sample pretreatment or chemicals, enables MFR analysis in less than one minute.

• Spectroscopic Analysis Equipment
• plastic
• Engineering Plastics

[Near-Infrared Analyzer Technical Data 8 Petrochemicals Fibers] This document presents various application possibilities for a Metrohm visible-near-infrared (Vis-NIR) analyzer that simultaneously measures multiple quality control parameters of nylon. By using this unique analytical technique, significant cost and time savings can be achieved compared to standard reference analysis.

• Spectroscopic Analysis Equipment
• plastic
• Engineering Plastics

We offer a comb-shaped "screen-printed electrode" that allows for electrochemical measurements with a small sample size of about 1 liquid. As it is a disposable type, there is no need for electrode pretreatment or maintenance. We have a wide range of materials and sizes available, enabling us to provide electrodes designed and configured to suit various applications. 【Features】 ■ A variety of electrode materials are available, including carbon, gold, platinum, silver, and silver/silver chloride. ■ The substrate materials used are glass, alumina, and plastic. ★ In 2009, a paper on the development of a SARS virus gene sensor using our product was published in the specialized journal "Electroanalysis." You can view a document summarizing the paper in the "PDF Download" section. * We are also offering a document that summarizes products for electrochemical measurements. Please feel free to contact us.

• Other electric meters
• Analytical Equipment and Devices

In the semiconductor industry, ultra-high purity reagents are required. The presence of ionic impurities can compromise the quality of the products. This application presents the measurement results of anionic impurities in a 28% semiconductor-grade ammonium hydroxide solution. To avoid the influence of the matrix, measurements were conducted using concentration techniques involving inline neutralization and matrix removal.

• Analytical Equipment and Devices
• Ion Chromatography
• Semiconductor inspection/test equipment

This report presents the results of quantifying anions in water-immiscible organic solvents using ion chromatography, while automatically removing the matrix in-line. It includes "measurement results," as well as "analytical methods" and "analytical parameters." After concentrating the anions, the water-immiscible organic solvent remaining in the concentration column was washed out by passing pure water through it. 【Contents】 ■ Measurement Results ■ Column ■ Solution ■ Analytical Methods ■ Analytical Parameters ■ Constituent Devices ■ Device Flow Diagram *For more details, please refer to the PDF document or feel free to contact us.

• Analytical Equipment and Devices
• Ion Chromatography
• Water quality testing

We present the results of measuring trace cations contained in lithium hexafluorophosphate (LiPF6), which is used as an electrolyte in secondary batteries (storage batteries), using ion chromatography. After continuous suppression of cations, trace cations in the sample were measured using a conductivity detector. The publication includes details on "analytical methods," "analytical parameters," and "instrument configuration." 【Contents】 ■ Column ■ Solution ■ Analytical Method ■ Analytical Parameters ■ Instrument Configuration *For more details, please refer to the PDF document or feel free to contact us.

• Analytical Equipment and Devices
• Lithium-ion battery
• Secondary Cells/Batteries

This document presents the results of measuring trimethylamine (TMA) and standard cations in 30% hydrogen peroxide (H2O2) using ion chromatography. The analysis employed inline concentration with matrix removal (MiPCT-ME), followed by measurement with a continuous suppression conductivity detector for cations. It includes details on "analytical methods," "analytical parameters," and "instrument configuration." 【Contents】 ■ Column ■ Solution ■ Analytical method ■ Analytical parameters ■ Instrument configuration

• Ion Chromatography
• Semiconductor inspection/test equipment
• Analytical Equipment and Devices

This is an application document that uses ion chromatography to analyze anions in a high-concentration sodium hydroxide solution, commonly used in fields such as semiconductor manufacturing, while automating the neutralization process.

• Wafer
• Analytical Equipment and Devices
• Semiconductor inspection/test equipment

This is an introduction to a paper on rapid virus detection using a potentiostat, published in the specialized journal Electroanalysis. Title: "Gene Sensor for SARS Virus Detection Using Screen-Printed Carbon Electrodes with Gold Nanostructures."

• Other electric meters
• DNA sequencer

Raman spectroscopy is an established molecular spectroscopic technique for non-invasive and non-destructive chemical analysis. It is used primarily for the identification of organic materials such as carbon nanomaterials, regulated substances, hazardous chemicals, pharmaceutical raw materials, gemstones and minerals, affected tissues, pigments, and paintings. The portable Raman spectrometer STRam from B&W Tek is portable and equipped with software containing a spectral library, allowing it to provide identification results in under one minute.

• Raman Spectrophotometer
• Material Evaluation Test
• Spectroscopic Analysis Equipment

The B&W Tek portable Raman spectrometer i-Raman series features a compact and lightweight design with unprecedented capabilities and innovative sampling accessories.

• Raman Spectrophotometer
• Spectroscopic Analysis Equipment
• Optical microscope

This introduces an example of continuous multi-sample conductivity measurement in compliance with USP standards, conducted using an auto-sampler, particularly in the pharmaceutical industry. It is recommended for customers considering efficiency and labor-saving solutions, as conductivity measurements of water are performed daily, not only in the pharmaceutical industry.

• Conductivity Meter
• Analytical Equipment and Devices
• Conductivity Meter

Metronome provides top-quality analytical instruments, expertise, and first-class on-site services.

• Analytical Equipment and Devices
• Circuit Board Inspection Equipment

● Space-saving design that allows sample measurement anywhere without location restrictions ● Usable outdoors, suitable for both research and routine analysis ● Selectable measurement wavelengths of 532nm, 785nm, and 1064nm for optimal analysis of biological preparations, carbon materials, chemical mixtures, and active pharmaceutical ingredients equipped with a real optical fiber sampling probe

• Analytical Equipment and Devices

Significantly reduce manufacturing costs by using near-infrared analyzers (NIR) and Raman spectrometers for reaction control and quality management in the production process of polyols and isocyanates, which are intermediates in polyurethane manufacturing!

• Analytical Equipment and Devices
• plastic
• Spectroscopic Analysis Equipment