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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 41067-2021: Nanotechnologies - Determination of sulfur, fluorine, chlorine and bromine content in graphene related powder - Combustion ion chromatography method Status: Valid
Basic dataStandard ID: GB/T 41067-2021 (GB/T41067-2021)Description (Translated English): Nanotechnologies - Determination of sulfur, fluorine, chlorine and bromine content in graphene related powder - Combustion ion chromatography method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A43 Word Count Estimation: 14,11 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 41067-2021: Nanotechnologies - Determination of sulfur, fluorine, chlorine and bromine content in graphene related powder - Combustion ion chromatography method---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Nanotechnologies -- Determination of sulfur, fluorine, chlorine and bromine content in graphene related powder -- Combustion ion chromatography method ICS 71:040 CCSA43 National Standards of People's Republic of China Sulfur, fluorine, Determination of chlorine and bromine content by combustion ion chromatography Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Principle 1 5 Reagents and Materials 1 6 Instruments and equipment 2 7 Test Step 2 8 Result calculation 3 9 Detection limit 4 10 Precision4 11 Factors Affecting Assay Results 4 12 Test report 4 13 Example 4 Appendix A (Informative) Test Procedure Example 5 Appendix B (informative) Typical mixed standard solution ion chromatogram 6 Appendix C (Informative) Test Example 7 Reference 10 forewordThis document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by the Chinese Academy of Sciences: This document is under the jurisdiction of the National Nanotechnology Standardization Technical Committee Nanomaterials Sub-Technical Committee (SAC/TC279/SC1): This document is drafted by: Beijing Physical and Chemical Analysis and Testing Center, Guangzhou Special Pressure Equipment Testing and Research Institute, Metallurgical Industry Information Standards Research Institute Research Institute, Metrohm China Co:, Ltd:, Qingdao Shenghan Chromatography Technology Co:, Ltd:, National Nanoscience Center, Chinese Academy of Sciences Shanxi Coal Chemical Industry Institute of Science, Qingdao Huagao Graphene Technology Co:, Ltd:, Jinan Shengquan Group Co:, Ltd:, Hubei Institute of Standardization and Quality: The main drafters of this document: Liu Weili, Le Shengfeng, Wei Xiaoxiao, Li Maodong, Li Qian, Huang Xianhong, Song Bingxin, Zhu Xinyong, Ge Guanglu, Guo Hongyun, Peng Guobao, Huang Rong, Bai Yun, Huang Guouo, Tian Zijian, Zhang Xizhi, Liu Renxiao, Chen Chengmeng, Song Wei, Zhao Ting, Huang Wenwen, Liu Yiren, Gao Xia, Zhang Mei, Hu Guanghui, Li Na:IntroductionThe sources of sulfur, fluorine, chlorine and bromine in graphene powder are wide: The production raw materials of some graphene powders contain a certain amount of the above-mentioned four Elements, chemical reagents used in the production and preparation process may also introduce the above four elements: Sulfur, fluorine, chlorine and bromine in graphene powder The content of the element has a certain influence on its application in lubricating oil, electrical and electronic products, functional coatings and other fields: Combustion ion chromatography has the characteristics of rapidity, convenience, good reproducibility and high sensitivity: The content of sulfur, fluorine, chlorine and bromine in graphene powder: Sulfur, fluorine, Determination of chlorine and bromine content by combustion ion chromatography Warning: Persons using this document should have practical experience with formal laboratory work: This method does not specify any There are security concerns: Some of the experimental procedures specified in this document may lead to hazardous situations, and it is the responsibility of the user to take appropriate safety and health measures, and ensure compliance with the conditions stipulated by the relevant national laws and regulations:1 ScopeThis document describes a method for the determination of sulfur, fluorine, chlorine and bromine content in graphene powder by combustion ion chromatography: This document is applicable to the determination of sulfur, fluorine, chlorine and bromine content in graphene powder:2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 6682 Analysis Laboratory Water Specifications and Test Methods GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values GB/T 30544:13 Nanotechnology Terminology Part 13: Graphene and related two-dimensional materials3 Terms and DefinitionsThe terms and definitions defined in GB/T 30544:13 and the following apply to this document: 3:1 graphene-related powder Graphene-related two-dimensional materials in powder form: Note: Graphene-related two-dimensional materials refer to carbon-based two-dimensional materials with no more than 10 layers, including graphene, double-layer graphene, few-layer graphene, graphene oxide, and other Original graphene oxide, etc:4 PrinciplesBased on the principle of pyrolysis, the sample is pyrolyzed and burned in an oxygen stream, fluorine, chlorine, and bromine are converted into hydrogen halide gas, and sulfur is converted into oxidized gas: material gas: The generated gas is transported by the carrier gas to the hydrogen peroxide absorption liquid for absorption, and converted into halogenated acid and sulfuric acid solution respectively: Fluorine in the absorption liquid After the ion, chloride ion, bromide ion and sulfate ion are separated by the chromatographic column, the electrical conductivity of each anion component is determined by a conductivity detector with a suppressor: The conductivity was qualitatively determined according to the relative retention time of each component in the standard solution, and quantified by the standard curve method: The content of sulfur, fluorine, chlorine and bromine in the sample It is calculated from the content of sulfate ion, fluoride ion, chloride ion and bromide ion in the absorption liquid respectively:5 Reagents and Materials5:1 Unless otherwise stated, the reagents used in this method are all analytically pure, and the water is first-grade water that meets the requirements of GB/T 6682: ...... |
