GB/T 42424-2023 English PDF

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GB/T 42424-2023: Determination of 11 kinds of restricted dyestuff such as 5-amino-6-chloro-o-cresol in hair dyes - HPLC-MS
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42424-2023	279	Add to Cart	3 days	Determination of 11 kinds of restricted dyestuff such as 5-amino-6-chloro-o-cresol in hair dyes - HPLC-MS	Valid

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Basic data

Standard ID: GB/T 42424-2023 (GB/T42424-2023)
Description (Translated English): Determination of 11 kinds of restricted dyestuff such as 5-amino-6-chloro-o-cresol in hair dyes - HPLC-MS
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y42
Classification of International Standard: 71.100.70
Word Count Estimation: 14,194
Date of Issue: 2023-03-17
Date of Implementation: 2023-10-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42424-2023: Determination of 11 kinds of restricted dyestuff such as 5-amino-6-chloro-o-cresol in hair dyes - HPLC-MS

---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.
ICS 71.100.70 CCSY42 National Standards of People's Republic of China 11 species including 5-amino-6-chloro-o-cresol in hair dye products Determination of permitted hair dyes by liquid chromatography-mass spectrometry 5-amino-6-chloro-o-cresolin hairdyes-HPLC-MS Released on 2023-03-17 2023-10-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

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 for Standardization Documents" drafting. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China National Light Industry Council. This document is under the jurisdiction of the National Standardization Technical Committee of Fragrance, Flavor and Cosmetics (SAC/TC257). This document is drafted by. Shanghai Quality Supervision and Inspection Technology Research Institute, Shanghai Spice Research Institute Co., Ltd., Zhejiang Yanxue Cosmetics Co., Ltd. Co., Ltd., Pony Testing Group Co., Ltd., Youyi Biotechnology (Jiangsu) Co., Ltd. The main drafters of this document. Gu Yuxiang, Nie Lei, Yang Bin, Zheng Yi, He Guangming, Fu Yu, You Bing, Weng Shiyu, Cheng Shan. 11 species including 5-amino-6-chloro-o-cresol in hair dye products Determination of permitted hair dyes by liquid chromatography-mass spectrometry Caution --- Personnel using this document should have practical experience in formal laboratory work. This document does not address all possible security issues question. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the relevant national regulations.

1 Scope

This document describes the liquid chromatography-mass spectrometry method for the determination of 11 permitted hair dyes, including 5-amino-6-chloro-o-cresol, in hair dye products, including Principles, reagents and materials, instruments and equipment, test procedures, test data processing, recovery rate, precision, etc. This document applies to 1-hydroxyethyl-4,5-diaminopyrazole sulfate, hydroxyethyl-p-phenylenediamine sulfate, 2-amino-4-hydroxy Ethylaminoanisole, 2,6-dihydroxyethylaminotoluene, hydroxyethyl-3,4-methylenedioxyaniline hydrochloride, 2-methyl-5-hydroxyethylaminophenol, 4-hydroxy Propylamino-3-nitrophenol, Hydroxyethyl-2-nitro-p-toluidine, 5-amino-6-chloro-o-cresol, 3-nitroparahydroxyethylaminophenol, 2-amino-6-chloro -4- Determination of nitrophenols. The method detection limit of 1-hydroxyethyl-4,5-diaminopyrazole sulfate and 3-nitroparacetaminophen in this document is 3 mg/kg, and the limit of quantification is 3 mg/kg. 10mg/kg; Hydroxyethyl p-phenylenediamine sulfate, 2-amino-4-hydroxyethylaminoanisole, 2-methyl-5-hydroxyethylaminophenol, 4-hydroxypropylamino- The detection limit of 3-nitrophenol is 0.5 mg/kg, and the limit of quantification is 2 mg/kg; 2,6-dihydroxyethylaminotoluene, hydroxyethyl-3,4-methylene The method detection limit of phenylaniline hydrochloride and hydroxyethyl-2-nitro-p-toluidine is 0.15 mg/kg, and the limit of quantification is 0.5 mg/kg; 5-amino-6-chloro- The detection limit of o-cresol and 2-amino-6-chloro-4-nitrophenol was 10mg/kg, and the limit of quantification was 40mg/kg.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 6682 Analytical laboratory water specifications and test methods

3 Terms and Definitions

This document does not have terms and definitions that need to be defined.

4 principles

The sample was ultrasonically extracted with methanol, centrifuged, diluted with 10% methanol, filtered through a 0.22 μm filter membrane, and the filtrate was injected into a liquid chromatography mass spectrometer for detection. The matrix blank standard curve was quantified by the external standard method.

5 Reagents and materials

Unless otherwise specified, use only chromatographically pure reagents. 5.1 Water, GB/T 6682, Class I. 5.2 Methanol. ......

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