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GB/T 41436-2022 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 41436-2022: Determination of triclosan and triclocarban in finger paints - High performance liquid chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41436-2022	189	Add to Cart	3 days	Determination of triclosan and triclocarban in finger paints - High performance liquid chromatography	Valid

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Basic data

Standard ID: GB/T 41436-2022 (GB/T41436-2022)
Description (Translated English): Determination of triclosan and triclocarban in finger paints - High performance liquid chromatography
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y57
Word Count Estimation: 9,954
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41436-2022: Determination of triclosan and triclocarban in finger paints - 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 triclosan and triclocarban in finger paints -- High performance liquid chromatography ICS 97.200.50 CCSY57 National Standards of People's Republic of China Determination of triclosan and triclocarban in finger paints high performance liquid chromatography Published on 2022-04-15 2022-04-15 Implementation State Administration for Market Regulation Released by the National Standardization Administration

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 of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China National Light Industry Federation. This document is under the jurisdiction of the National Toy Standardization Technical Committee (SAC/TC253). This standard was drafted by. Shanghai Customs Mechanical and Electrical Products Testing Technology Center, Beijing Zhongqinglian Certification Center Co., Ltd., Zhejiang Fangyuan Testing Group Co., Ltd., Fujian Mingta Toys Co., Ltd., Shenzhen Institute of Metrology and Quality Inspection, China Testing and Certification Group Co., Ltd. Co., Ltd., Guangzhou Customs Technology Center. The main drafters of this standard. Wei Biwen, Wang Xiuli, Hu Dan, Duan Wenchuang, Huang Zhiyong, Zheng Qingtao, Ouyang Yu, Lan Wenqing. Determination of triclosan and triclocarban in finger paints high performance liquid chromatography Caution - Persons 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 to ensure compliance with the conditions stipulated by relevant national regulations.

1 Scope

This document describes a high-performance liquid chromatography method for the determination of triclosan and triclocarban content in finger paints. This document applies to the determination of triclosan and triclocarban in finger paints.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 6682 Analysis Laboratory Water Specifications and Test Methods

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document.

4 Principles

Methanol was used as the extraction solvent, ultrasonically extracted for 10 min, centrifuged, the supernatant was taken out, the residue was extracted again, and the two extractions were combined. After filtration, high performance liquid chromatography was used for separation, diode array detector detection, and external standard method for quantification.

5 Reagents and Materials

The following reagents, unless otherwise specified, use only chromatographically pure reagents and above. The laboratory water meets the first-class water specified in GB/T 6682 Require. 5.1 Methanol. 5.2 Triclosan (CAS number. 3380-34-5) and triclocarban (CAS number. 101-20-2) standard products. the purity is not less than 99%. 5.3 Triclosan standard stock solution. Weigh an appropriate amount of triclosan (accurate to 0.1 mg) standard substance, and prepare it with methanol (5.1) to a mass concentration of 1000mg/L standard stock solution, placed in -18 ℃ refrigerator, valid for 6 months. 5.4 Standard stock solution of triclocarban. Weigh an appropriate amount of triclocarban (accurate to 0.1 mg) standard substance, and prepare the mass concentration with methanol (5.1). It is a standard stock solution of 1000 mg/L, placed in a -18 ℃ refrigerator, and the validity period is 6 months. 5.5 Triclosan standard working solution. Dilute the triclosan standard stock solution (5.3) stepwise with methanol (5.1) to prepare a set of standard working solutions. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 41436-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 41436-2022_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 41436-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 41436-2022_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.