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GB/T 34918-2017 English PDF

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US$219.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 34918-2017: Determination of 7 sexual hormones in cosmetics -- Ultra high performance liquid chromatography-tandem mass spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 34918-2017	219	Add to Cart	3 days	Determination of 7 sexual hormones in cosmetics -- Ultra high performance liquid chromatography-tandem mass spectrometry	Valid

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Basic data

Standard ID: GB/T 34918-2017 (GB/T34918-2017)
Description (Translated English): Determination of 7 sexual hormones in cosmetics -- Ultra high performance liquid chromatography-tandem mass spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y42
Classification of International Standard: 71.100.70
Word Count Estimation: 11,125
Date of Issue: 2017-11-01
Date of Implementation: 2018-05-01
Regulation (derived from): National Standard Announcement 2017 No. 29
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

GB/T 34918-2017: Determination of 7 sexual hormones in cosmetics -- Ultra high performance liquid chromatography-tandem mass spectrometry

---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 7 sexual hormones in cosmetics-Ultra high performance liquid chromatography-tandem mass spectrometry ICS 71.100.70 Y42 National Standards of People's Republic of China Determination of seven sex hormones in cosmetics Ultra Performance Liquid Chromatography - Tandem Mass Spectrometry Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard by the National Quality Supervision Key Products Testing Methods Standardization Technical Committee (SAC/TC374) and focal point. This standard was drafted unit. Shenzhen Institute of Measurement and Quality Inspection, the quality of check Warner (Beijing) Co., Ltd. Technology Center, the Federation seized (Beijing) Co., Ltd. Quality Inspection Institute, the National Commodity Quality Supervision and Inspection Center, Shenzhen City, large capacity biotechnology Co., Ltd., Shenzhen Jin Yin Biotechnology Co., Ltd., Zhejiang Yan Zhuang Cosmetics Co., Ltd., Infinitus (China) Co., Ltd., Perfect (China) Co., Ltd. Division, Shanghai affordable herbal Cosmetics Co., Ltd., Guangdong Danzi Group Co., Ltd., Guangzhou City, the United States and Cosmetics Co., Ltd., Guangdong Bawei Biotechnology Co., Ltd., NICE Group Co., Ltd., Yiwu City Products (Commodity) Quality Supervision, Inspection and Research Institute. The main drafters of this standard. Zhao Yan, Lin Chi-hui, lucky na, Feng shore red, Chen Qian, Xu Honghui, Yang Ping Shun, Ge Feng, Sun Hongmei, Yao Songjun, Li Xiaomin, Yuan Liwen, Lu Zhi, Mao Yongjin, Zhang Jian, Liu Ruixue, Duan Jianjun, Wei Shunwen. Determination of seven sex hormones in cosmetics Ultra Performance Liquid Chromatography - Tandem Mass Spectrometry Warning --- personnel using this standard should have formal laboratory work experience. The use of this standard may involve some in danger Dangerous materials, equipment and operation, this standard does not indicate all possible security issues. It is the user's responsibility to take appropriate safety and health measures Shi, and ensure compliance with the conditions of the relevant state laws and regulations.

1 Scope

This standard specifies the ultra-high performance liquid chromatography-tandem mass spectrometry water, milk, cream, mask, powder and other cosmetics in seven kinds of irritation Principles of estrogen (estriol, estradiol, estrone, diethylstilbestrol, testosterone, methyltestosterone, progesterone), reagents, equipment, sample handling, assays, Experimental data processing and experimental reports. This standard applies to water, milk, cream, mask, powder and other cosmetics in the detection of seven sex hormones.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies 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

With methanol, acetonitrile (1 1, volume ratio) mixed solvent swirling cosmetics sex hormones, centrifugal filtration, adding sodium hydroxide solution Liquid saponification reaction, adjust the pH to 6.5 ~ 7.5, purified by solid phase extraction cartridge, determined by reverse-phase ultra performance liquid chromatography - tandem mass spectrometry, Internal standard method.

4 Reagents or materials

Unless otherwise specified, only analytical reagents are used. 4.1 GB/T 6682 provisions of a water. 4.2 methanol. Chromatography pure. 4.3 acetonitrile. Chromatographic purity. 4.4 Ammonium acetate. 4.5 Sodium hydroxide. 4.6 concentrated hydrochloric acid. 4.7 Methanol Acetonitrile (1 1, volume ratio), respectively, the amount of 500mL methanol (4.2) and 500mL acetonitrile (4.3) after mixing well. 4.8 Ammonium acetate solution (0.5 mmol/L) Weigh 38.5 mg of ammonium acetate (4.4) and dissolve to 1 L with water (4.1). 4.9 Sodium hydroxide solution (20g/L) Weigh 20.0g sodium hydroxide (4.5) and dissolve to 1L with water (4.1). 4.10 Hydrochloric acid solution (10mol/L). Take 833mL of concentrated hydrochloric acid (4.6) and dissolve to 1L with water (4.1). 4.11 Hydrochloric acid solution (1mol/L). Measure 100mL of 10mol/L hydrochloric acid solution (4.10) and dissolve to 1L with water (4.1). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 34918-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 34918-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 34918-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 34918-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.