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

Standard No.

GB/T 43548-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 43548-2023

Introduction

1. Background and significance of standard formulation

The formulation of GB/T 43548-2023 aims to standardize the determination methods of nine metal elements (arsenic, cadmium, cobalt, chromium, copper, nickel, lead, antimony, and mercury) in surfactants and detergents, ensure product quality and safety, and meet market supervision needs. This standard was proposed by the China Light Industry Federation and is managed by the National Technical Committee for Standardization of Surfactants and Detergents.

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2. Determination principle and method

This standard adopts inductively coupled plasma mass spectrometry (ICP-MS), which converts metal elements into aerosol form and enters the mass spectrometer for detection through acid digestion of samples. This method has the characteristics of high sensitivity and low detection limit.

3. Comparison of standard frameworks

Standard dimensions	GB/T 43548—2023	Internationally accepted methods	Other domestic standards
Scope of application	Determination of metal elements in surfactants and detergents	Widely used in a variety of chemical products	Focused on specific industrial applications
Detection accuracy	Microgram/kilogram level	Submicrogram/kilogram level	Milligram/kilogram level
Detection elements	Nine metals including arsenic, cadmium and cobalt	Various non-metals and metals	Limited metal elements

4. Implementation suggestions

4.1 Laboratory conditions

• Equipped with ICP-MS instruments to ensure that their performance meets the standard requirements.
• Laboratory personnel must receive professional training and have relevant operating experience.
• Establish a complete quality control system, calibrate equipment regularly and verify the accuracy of reagents.

4.2 Sample preparation and testing

• Strictly follow the sample digestion steps in the standard to ensure complete dissolution and no contamination.
• Use high-purity reagents and pay attention to the impact of environmental conditions on the measurement results.
• Perform blank tests and spike recovery tests regularly to verify the reliability of the method.

GB/T 43548-2023 Referenced Document

• GB/T 13173 Surface active agents—Test methods for detergents
• GB/T 5327-2008 Surfactant Terminology
• GB/T 6682 Water for analytical laboratory use.Specification and test methods

GB/T 43548-2023 history

• 2023 GB/T 43548-2023 Determination of metallic element contents in surface active agents and detergents

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