Providing high-precision analysis services! MLAP certified registration and Ministry of the Environment order qualification examination certification agency.
At Hiyoshi, we have introduced a high-resolution gas chromatography mass spectrometer (HRGC/HRMS) to provide comprehensive support for dioxin measurement analysis, emission suppression consulting, and research and investigation. We conduct measurements using conventional methods in accordance with JIS standards. The analysis of dioxins is performed through pretreatment (extraction, purification), followed by analysis using both instrumental analysis and biological testing methods. 【Features】 ○ We provide highly accurate analysis services → MLAP certified registration and certified by the Ministry of the Environment for contract qualifications ○ We also offer contract analysis services using the CALUX assay, which is recognized as an official method ○ Effective investigation measurements can be conducted → Utilizing both the conventional high-resolution gas chromatography mass spectrometer (HRGC/HRMS) and the CALUX assay measurement method → By selecting between the high-resolution gas chromatography mass spectrometer (HRGC/HRMS) and the CALUX method according to the purpose of the request, cost and time savings are possible * You can choose from various options for both conventional and simplified methods for your analysis requests. For more details, please contact us or download the catalog.
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【Media, Hiyoshi Recruitment Standards and Testing Methods】 ○ Media: Soil → Manual for Soil Investigation Related to Dioxins March 2008, Ministry of the Environment, Water and Air Quality Bureau, Soil Environment Division → Quantification Limit: 4-5 Chlorinated Compounds 1pg/g-dry or less ○ Media: Sediment → Manual for Soil Investigation Related to Dioxins March 2008, Ministry of the Environment, Water and Air Quality Bureau, Soil Environment Division → Quantification Limit: 4-5 Chlorinated Compounds 0.3pg/g-dry or less ○ Media: Water Quality → JIS K 0312 "Measurement Method for Dioxins in Industrial Water and Factory Effluent" (2008) → Quantification Limit: Effluent 10pg-TEQ/L or less, Environmental Water 1pg-TEQ/L or less ● For more details, please contact us or download the catalog.
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Hiyoshi Corporation provides comprehensive support for environmental projects across a wide range of fields, from analysis and measurement to industrial chemicals, facility management, and environmental conservation. With a history spanning half a century and a solid technical foundation, we engage in various activities related to the environment, including environmental analysis, maintenance of environmental infrastructure, sales of industrial chemicals, waste collection and transportation, and road maintenance. Additionally, we create and offer new solutions as part of Hiyoshi's one-stop service. In the future, we are also considering a life innovation business that applies "bioassays" (biological testing methods) using organisms developed by Hiyoshi, such as genetically modified cells, to measure environmental conditions. Furthermore, based on the belief that "environmental issues have no borders," we have been accepting over 200 trainees from 20 countries and dispatching engineers for more than 20 years, focusing on human resource development to share Hiyoshi's expertise accumulated over more than 60 years with the world. Moving forward, we anticipate that activities to realize business expansion based on our established achievements will become more active. Hiyoshi aspires to contribute to the international community with greater efforts and innovation to ensure safety and security in global living conditions.