GB/T 31408-2015 English PDF

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GB/T 31408-2015: Determination of phenacetin in hair dye -- Liquid chromatography method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 31408-2015	149	Add to Cart	3 days	Determination of phenacetin in hair dye -- Liquid chromatography method	Valid

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Basic data

Standard ID: GB/T 31408-2015 (GB/T31408-2015)
Description (Translated English): Determination of phenacetin in hair dye -- Liquid chromatography method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y42
Classification of International Standard: 71.100.70
Word Count Estimation: 7,767
Date of Issue: 2015-05-15
Date of Implementation: 2015-09-30
Quoted Standard: GB/T 6682
Regulation (derived from): National Standard Announcement 2015 No. 15
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Standard specifies the method of hair dye liquid chromatography phenacetin of Central Africa. This Standard applies to the determination of hair dye phenacetin of Central Africa.

GB/T 31408-2015: Determination of phenacetin in hair dye -- Liquid chromatography method

---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 phenacetin in hair dye. Liquid chromatography method ICS 71.100.70 Y42 National Standards of People's Republic of China Determination of hair dye Central Africa phenacetin liquid chromatography Issued on. 2015-05-15 2015-09-30 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the National Quality Supervision key product testing method Standardization Technical Committee (SAC/TC374) and focal points. This standard was drafted. Guangzhou Quality Supervision and Testing Institute, Zhaoqing Di Choi Chemical Co., Ltd., Guangzhou Baiyun Linkman fine Factories, National Quality Supervision and Inspection Center Cosmetics (Guangzhou), Fujian Province, product quality inspection Institute, Hebei Province, Food Quality Supervision and Inspection Institute Hospital studies, Quality Inspection Institute of Zhejiang, Guangdong Sheng Weina Fine Chemical Co., Ltd. Drafters of this standard. Xie Jian, Chen Liwei, Wu Yu Luan Party of China, Luo Haiying, Huang Yufeng, Guo Changhong, Han Wanqing, Xian Yanping, Deming, Zhang Yan, He Qiaosang, Wang Yi, Wang Bin, Wang Chen school, JiangFu whole, Zhao Jinsong. Determination of hair dye Central Africa phenacetin liquid chromatography

1 Scope

This standard specifies the liquid chromatographic method of hair dye Central Africa phenacetin. This standard applies to the determination of hair dye phenacetin of Central Africa.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis Principle 3 Sample of phenacetin by aqueous methanol extract, measured by HPLC, external standard.

4 instruments and materials

4.1 Water. GB/T 6682 provided a water. 4.2 Methanol. chromatographically pure. 4.3 hexane. AR. 4.4 acetonitrile. chromatography. 4.5 phenacetin standard substance. purity ≥99%; CAS. 62-44-2. 4.6 70% aqueous solution of methanol. water = V 73 V methanol. 4.7 standard stock solution (5.0mg/mL). Weigh accurately standard substance (4.5) 50.0mg, 70% aqueous methanol (4.6) was dissolved and set the volume To 10mL. 4.8 standard working solution. Pipette appropriate amount of stock standard solution (4.7) with 70% aqueous methanol (4.6) stepwise diluted concentrations were 0μg/mL, 0.5μg/mL, 2.0μg/mL, 10.0μg/mL, 20.0μg/mL, 50.0μg/mL series of standard working solution. 5. Apparatus 5.1 HPLC or UHPLC. with diode array detector. 5.2 Analytical balance. accuracy of 0.1mg. 5.3 Vortex. 5.4 ultrasonic cleaning. ultrasonic power 250W. 5.5 centrifuge. speed of not less than 2500r/min. 5.6 Membrane. nylon membrane, pore size 0.22μm. ......

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