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GB/T 19427-2022 English PDF

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Q: Should I purchase the latest version GB/T 19427-2022?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 19427-2022 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 19427-2022: Determination of 12 phenolic compounds in propolis - HPLC-MS/MS method and HPLC method
Status: Valid

GB/T 19427: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 19427-2022	259	Add to Cart	3 days	Determination of 12 phenolic compounds in propolis - HPLC-MS/MS method and HPLC method	Valid
GB/T 19427-2003	359	Add to Cart	3 days	Method for the determination of rutin, myricetin, quercetin, kaempferol, apigenin, pinocembrin, chrysin, galanin contents in propolis -- LC-MS-MS detection method and LC-UV detection method	Obsolete

Similar standards

GB/T 19541 GB/T 18872 GH/T 1081 GB/T 45293 GB/T 45191

Basic data

Standard ID: GB/T 19427-2022 (GB/T19427-2022)
Description (Translated English): Determination of 12 phenolic compounds in propolis - HPLC-MS/MS method and HPLC method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B47
Word Count Estimation: 13,145
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 19427-2022: Determination of 12 phenolic compounds in propolis - HPLC-MS/MS method and HPLC 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 12 phenolic compounds in propolis - HPLC-MS/MS method and HPLC method ICS 65.140 CCSB47 National Standards of People's Republic of China Replacing GB/T 19427-2003 Determination of 12 phenolic compounds in propolis Liquid chromatography-tandem mass spectrometry and liquid chromatography Published on 2022-03-09 2022-10-01 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. This document replaces GB/T 19427-2003 "Rutin, myricetin, quercetin, camphenyl alcohol, apigenin, pinesin, caustic factor, gaoliang in propolis" Determination method of gingerin content liquid chromatography-tandem mass spectrometry detection method and liquid chromatography-ultraviolet detection method", in accordance with GB/T 19427-2003 In addition to structural adjustments and editorial modifications, the main technical changes are as follows. a) Added the detection items of caffeic acid, p-coumaric acid, ferulic acid, gracilisin 3-acetate, chlorogenic acid, and atipirin C (see Section 1 Chapter, 5.11, 7.2); b) Deleted the detection items of rutin and myricetone (see Chapter 1, 4.4, 4.5, 4.6, 6.2 of the.2003 edition); c) Changed the extraction conditions of propolis samples (see 7.1, 6.1 of the.2003 edition). This document is proposed by the All-China Federation of Supply and Marketing Cooperatives. This document is under the jurisdiction of the National Standardization Working Group on Bee Products (SAC/SWG2). This document was drafted by. Qinhuangdao Customs Technology Center, Zhejiang University, Xiamen Sijian Biotechnology Co., Ltd. The main drafters of this document. Li Xuemin, Hu Fuliang, Cui Zongyan, Zhang Cuiping, Li Xiang, Yang Zhiwei, Cao Cuiling, Liu Xiaomao, Jia Guangqun, Zhang Jinjie, Cao Yanzhong and Yan Jianxiang. The previous versions of the documents replaced by this document are as follows. ---GB/T 19427-2003. Determination of 12 phenolic compounds in propolis Liquid chromatography-tandem mass spectrometry and liquid chromatography

1 Scope

This document describes the caffeic acid, p-coumaric acid, ferulic acid, quercetin, camphenyl alcohol, apigenin, pinesin, caine, galangin, Liquid chromatography-tandem mass spectrometry and liquid chromatography for the content determination of brevin 3-acetate, chlorogenic acid, and atipirin C. This document applies to caffeic acid, p-coumaric acid, ferulic acid, quercetin, camphenyl alcohol, apigenin, pinesin, caine, galangin, Determination of the content of raffinin 3-acetate, chlorogenic acid, and atipirin C.

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

Propolis sample is extracted with 85% ethanol aqueous solution, after ultrasonication, centrifugation, filtration and constant volume, it is determined by liquid chromatography-tandem mass spectrometer or equipped with violet It was determined by liquid chromatograph with external detector and quantified by external standard method.

5 Reagents and Materials

Unless otherwise stated, the reagents used are of analytical grade, and the water is the first grade water specified in GB/T 6682. 5.1 Ethanol. absolute ethanol. 5.2 Methanol. chromatographically pure. 5.3 Formic acid. chromatographically pure. 5.4 Acetic acid. chromatographically pure. 5.5 Aqueous ethanol solution (85 15). accurately pipette 85mL of ethanol (5.1) into a 100mL volumetric flask, and dilute to volume with water. 5.6 Methanol aqueous solution (80 20). accurately pipette 80 mL of methanol (5.2) into a 100 mL volumetric flask, and dilute to volume with water. 5.7 Methanol-0.1% formic acid aqueous solution (50 50). accurately pipette 50 mL methanol (5.2) and 0.1 mL formic acid (5.3) to a volume of 100 mL. In a measuring bottle, make up to volume with water. 5.8 0.1% formic acid aqueous solution. accurately pipette 1.0 mL of formic acid (5.3) into a 1000 mL volumetric flask, and dilute to volume with water. 5.9 0.1% formic acid-methanol solution. accurately pipette 1.0 mL of formic acid (5.3) into a 1000 mL volumetric flask, and dilute to volume with methanol (5.2). 5.10 1.0% acetic acid aqueous solution. accurately pipette 10 mL of acetic acid (5.4) into a 1000 mL volumetric flask, and dilute to volume with water. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 19427-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 19427-2022_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 19427-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 19427-2022_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.

Question 5: Should I purchase the latest version GB/T 19427-2022?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 19427-2022 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.