General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 42357-2023
Introduction
GB/T 42357-2023 Determination of Purity of Insoluble Dyes - Liquid Chromatography is a standard published by the Standardization Administration of China (SAC) that specifies the method of determining the purity of insoluble dyes using liquid chromatography.
Insoluble dyes are widely used in various industries, such as textile, printing, and ink. The purity of these dyes plays a crucial role in ensuring their quality and performance. This standard provides guidelines for accurately measuring the impurity content in insoluble dyes through liquid chromatography.
Liquid chromatography is a powerful analytical technique that separates and quantifies different components in a sample based on their differential interactions with a stationary phase and a mobile phase. By applying this method, the purity of insoluble dyes can be determined by analyzing the impurities present in the sample.
The standard outlines the necessary equipment, reagents, and procedures required for conducting the liquid chromatography analysis. It also specifies the acceptance criteria for determining the purity of insoluble dyes and provides guidance on the interpretation of the obtained results.
Complying with GB/T 42357-2023 ensures the accurate determination of the purity of insoluble dyes, enabling manufacturers and users to assess the quality and performance of these dyes effectively. This standard contributes to the standardization and quality control of insoluble dyes, promoting the development and application of this important class of colorants.
GB/T 42357-2023 history
2023GB/T 42357-2023 Determination of the purity of water-insoluble dyes by liquid chromatography