GB/T 37641-2019 English PDF

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GB/T 37641-2019: Determination of 2, 3, 5, 4′-tetrahydroxystilbene-O-β-D-glucoside in cosmetics - High performance liquid chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37641-2019	199	Add to Cart	3 days	Determination of 2, 3, 5, 4′-tetrahydroxystilbene-O-β-D-glucoside in cosmetics - High performance liquid chromatography	Valid

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Basic data

Standard ID: GB/T 37641-2019 (GB/T37641-2019)
Description (Translated English): Determination of 2, 3, 5, 4��-tetrahydroxystilbene-O-��-D-glucoside in cosmetics - High performance liquid chromatography
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y42
Classification of International Standard: 71.100.70
Word Count Estimation: 10,199
Date of Issue: 2019-06-04
Date of Implementation: 2020-01-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37641-2019: Determination of 2, 3, 5, 4′-tetrahydroxystilbene-O-β-D-glucoside in cosmetics - High performance liquid chromatography

---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.
Determination of 2, 3, 5, 4'-tetrahydroxystilbene-O-β-D-glucoside in cosmetics--High performance liquid chromatography ICS 71.100.70 Y42 National Standards of People's Republic of China 2,3,5,4'-tetrahydroxydiphenyl in cosmetics Determination of ethylene-2-O-β-D-glucoside High performance liquid chromatography Published on.2019-06-04 2020-01-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is under the jurisdiction of the National Spice and Fragrance Cosmetics Standardization Technical Committee (SAC/TC257). This standard was drafted. Hebei Food Inspection Institute (National Fruit and Agricultural Processing Products Quality Supervision and Inspection Center), Shandong Province Food Pharmaceutical Testing Institute, Jiangsu Provincial Product Quality Supervision and Inspection Institute, Hebei Entry-Exit Inspection and Quarantine Bureau, Suzhou Genealogy Detection Technology Limited company, Shanghai Daily Chemical Industry Research Institute. The main drafters of this standard. Zhang Yan, Zhu Jianhua, Lu Jian, Ai Lianfeng, Sun Lei, Zhang Dongsheng, Wang Dong, Zhao Limin, Huang Yunxia, Shi Weijie, Zhang Leilei, Jia Wenxuan, Ye Zhuhong. 2,3,5,4'-tetrahydroxydiphenyl in cosmetics Determination of ethylene-2-O-β-D-glucoside High performance liquid chromatography

1 Scope

This standard specifies the content of 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside (hereinafter referred to as stilbene glucoside) in cosmetics. Principles, reagents and materials, instrumentation, determination procedures, calculation of results, recovery and precision of qualitative and quantitative detection methods for high performance liquid chromatography Density, allowable difference, etc. This standard applies to the main characteristic components of Polygonum multiflorum in shampoo and conditioner 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-grape Determination of glycosides. The detection limit of this standard method is 2mg/kg, and the limit of quantification is 7mg/kg.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods

3 Principle

The sample was ultrasonically extracted by acetonitrile aqueous solution, separated by high performance liquid chromatography, detected by UV detector, and characterized by retention time. Quantitative.

4 reagents and materials

Unless otherwise specified, the reagents used are chromatographically pure, and the water is the first grade water specified in GB/T 6682. 4.1 stilbene glycoside (standard material). purity is not less than 94.5%. Chinese and English names, chemical names, CAS numbers, molecules of stilbene glycosides See Table A.1 in Appendix A for the formula, relative molecular mass and structural formula. 4.2 Acetonitrile. Chromatographically pure. 4.3 20% acetonitrile aqueous solution. acetonitrile (4.2) 20 mL was weighed and mixed with 80 mL of water. 4.4 Standard working solution of stilbene glycoside. Weigh 0.10g (accurate to 0.0001g) of stilbene glycoside standard in 100mL brown capacity In the bottle, add acetonitrile aqueous solution (4.3) to prepare a standard storage solution of stilbene glycoside (1000μg/mL), and store at 4°C in the dark. The period is 2 months. Accurately transfer standard stock solutions 0.15mL, 0.45mL, 1.50mL, 3.00mL, 7.50mL, 15.0mL, 30.0mL in a 100mL brown volumetric flask, diluted with acetonitrile aqueous solution (4.3) and made up to a volume of 1.5μg/mL, Standards for stilbene glycosides of 4.5 μg/mL, 15.0 μg/mL, 30.0 μg/mL, 75.0 μg/mL, 150.0 μg/mL, and 300.0 μg/mL The working solution is stored at 4 ° C in the dark and can be used for one week.

5 instruments

5.1 High Performance Liquid Chromatograph. equipped with a UV detector (or equivalent detector). ......

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