GB/T 43548-2023Determination of metallic element contents in surface active agents and detergents (English PDF)

Foreword

This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting:

Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:

This document is proposed by China Light Industry Federation:

This document is under the jurisdiction of the National Technical Committee on Standardization of Surfactants and Detergents (SAC/TC272):

This document was drafted by: Zhejiang Lvkean Chemical Co:, Ltd:, Zhejiang Huangma Shangyi New Materials Co:, Ltd:, Chongqing Metrology Quality Inspection Research Institute, Zhongqing Chemical Shaoxing Co:, Ltd:, Guangzhou Libai Enterprise Group Co:, Ltd:, Guangzhou Jieshi Chemical Co:, Ltd:, Shandong Daming Fine Chemical Co:, Ltd:

Industrial Co:, Ltd:, Shanxi Jinbo Biopharmaceutical Co:, Ltd:, Jiangxi Ruisibo New Materials Co:, Ltd:, Shanxi Provincial Inspection and Testing Center (Shanxi Provincial Institute of Standards and Metrology Technology), Guangdong Zhonglianfeng Fine Chemical Co:, Ltd:, Xinxiang Huimiao Technology Co:, Ltd:, Shenzhen Rongqiang Technology Co:, Ltd:

Company, China Daily Chemistry Research Institute Co:, Ltd:, China Light Inspection and Certification (Taiyuan) Co:, Ltd:

The main drafters of this document: Mo Qinliang, Liu Zetao, Long Mei, Ye Dafeng, Xia Yichu, Tang Fuwei, Jiao Tiliu, Yang Zhaohui, Li Fenglei, Fu Bing, Wang Jian, Zhang Xuekui, Yi Xiaobin, Zhou Huosheng, Wang Huibao, Zhu Ridong, Li Genrong, Meng Zhaoling, Sun Dandan, Li Xiaohui, Li Huifang:

Metallic elements in surfactants and detergents Determination of content Warning---Personnel using this document should have practical experience in regular laboratory work: This document does not address all possible security issues question: Users are responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national regulations:

1 Scope

This document describes arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), nickel (Ni), lead in surfactants and detergents Determination method for the content of nine metal elements (Pb), antimony (Sb) and mercury (Hg):

This document is applicable to the determination of the contents of nine metal elements in various surfactants and detergents:

2 Normative reference documents

GB/T 5327-2008

GB/T 6682

GB/T 13173

3 Terms and definitions

The terms and definitions defined in GB/T 5327-2008 and the following apply to this document: 3:1 surfaceactiveagent A surface-active compound that dissolves in liquids, especially water, due to preferential adsorption on the liquid/gas surface or other interfaces:

Surface tension or interfacial tension is significantly reduced:

Note: Surfactant refers to a molecule that contains at least one group with affinity for significantly polar surfaces (to ensure its water solubility in most cases):

) and a non-polar group with little affinity for water: [Source: GB/T 5327-2008,2:1] 3:2 detergent detergent The scrubbing process uses specially formulated products for cleaning:

Note: Detergents usually include main components (surfactants) and auxiliary components (builders, etc:):

[Source: GB/T 5327-2008, 2:2, with modifications]

4 Principles

After the sample is digested with acid, the sample solution is brought into the atomization system by the carrier gas for atomization, and then enters the plasma pass in the form of aerosol:

It is fully evaporated, dissociated, atomized and ionized in high temperature and inert gas, and converted into charged positive ions through the ion collection system: