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GB/T 41068-2021 English PDF

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US$309.00 · In stock
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GB/T 41068-2021: Nanotechnologies - Determination of water-soluble anions content in graphene-related powder - Ion chromatography method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41068-2021	309	Add to Cart	3 days	Nanotechnologies - Determination of water-soluble anions content in graphene-related powder - Ion chromatography method	Valid

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Basic data

Standard ID: GB/T 41068-2021 (GB/T41068-2021)
Description (Translated English): Nanotechnologies - Determination of water-soluble anions content in graphene-related powder - Ion chromatography method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A43
Word Count Estimation: 15,167
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41068-2021: Nanotechnologies - Determination of water-soluble anions content in graphene-related powder - 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 water-soluble anions content in graphene-related powder -- Ion chromatography method ICS 71:040 CCSA43 National Standards of People's Republic of China Water-soluble anions in nanotechnology graphene powders Content Determination 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 devices 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 Appendix A (Informative) Example 5 of Test Solution Preparation Steps Appendix B (Informative) Instrumental Analysis Conditions and Chromatogram 6 Appendix C (Informative) Test Example 8 Reference 11

foreword

This 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, Metallurgical Industry Information Standards Research Institute, Guangzhou Special Pressure Equipment Testing and Research Institute Research Institute, Shenzhen University of Technology, ENN Graphene Technology Co:, Ltd:, Henan Bid Testing Service Co:, Ltd:, Xiamen City Product Quality Supervision and Inspection Institute, National Nanoscience Center, Metrohm China Co:, Ltd:, Qingdao Shenghan Chromatography Technology Co:, Ltd:, Chinese Academy of Sciences Shanxi Coal Chemistry Research Institute, Qingdao Huagao Graphene Technology Co:, Ltd:, Hubei Institute of Standardization and Quality: The main drafters of this document: Liu Weili, Le Shengfeng, Li Qian, Li Maodong, Chen Liqiong, Su Qiong, Zhao Linping, Jiang Xiaojian, Ge Guanglu, Song Bingxin, Zhu Xinyong, Huang Xianhong, Guo Hongyun, Huang Rong, Wei Xiaoxiao, Tian Zijian, Huang Guoguo, Li Jinlai, Guo Qianqian, Tong Yuecong, Liu Renxiao, Zhang Xizhi, Chen Chengmeng, Song Wei, Bai Yun, Zhao Ting, Gao Xia, Hu Guanghui, Zhang Mei, Liu Yiren, Li Qinmei:

Introduction

Anionic impurities in graphene powder affect the application value of graphene powder, and will adversely affect the specific properties of the product, such as When graphene powder is used as an electrode material or conductive agent for batteries, anions may cause irreversible side reactions in batteries, resulting in battery performance: decline: Therefore, the type and content of water-soluble anions are one of the important indicators for evaluating the quality of graphene powder: Ion chromatography has the characteristics of high sensitivity, stable and reliable results, and can measure multiple ions at the same time: The content of water-soluble anions in graphene powder was analyzed: Water-soluble anions in nanotechnology graphene powders Content Determination 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 Scope

This document describes a method for determining the content of water-soluble anions in graphene powder by ion chromatography: This document applies to the water-soluble fluoride ion (F-), chloride ion (Cl-), nitrite ion (NO2-), bromide ion in graphene powder Determination of (Br-), nitrate ion (NO3-), sulfate ion (SO42-), phosphate ion (PO43-): Other water-soluble anions contain The determination of the amount can also be performed with reference to this document:

2 Normative references

The 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 materials

3 Terms and Definitions

The 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 Principles

Various water-soluble anions in graphene powder can be extracted with suitable solvents, and separated by a chromatographic column, and then separated by an electron with a suppressor: Conductivity detector was used to measure the conductivity of each anion component, and qualitatively based on the relative retention time of each component in the standard solution, using the standard curve method Quantitative:

5 Reagents and Materials

5:1 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: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 41068-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 41068-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 41068-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 41068-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.