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GB/T 22977-2008 English PDF

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US$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 22977-2008: Determination of phenylbutazone residues in bovine milk and milk powder -- LC-MS-MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22977-2008	209	Add to Cart	3 days	Determination of phenylbutazone residues in bovine milk and milk powder -- LC-MS-MS method	Valid

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Basic data

Standard ID: GB/T 22977-2008 (GB/T22977-2008)
Description (Translated English): Determination of phenylbutazone residues in bovine milk and milk powder -- LC-MS-MS method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 9,994
Date of Issue: 2008-12-31
Date of Implementation: 2009-05-01
Quoted Standard: GB/T 6379.1; GB/T 6379.2; GB/T 6682
Regulation (derived from): National Standard Approval Announcement 2008 No.26 (Total No.139)
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 mediator phenylbutazone residues in milk and milk liquid chromatography-tandem mass spectrometry. This standard applies to the determination of milk and milk Mediator phenylbutazone residues. This standard method detection limit: Milk 5. 0��g/kg, milk 40. 0��g/kg.

GB/T 22977-2008: Determination of phenylbutazone residues in bovine milk and milk powder -- LC-MS-MS 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 phenylbutazone residues in bovine milk and milk powder.LC-MS-MS method ICS 67.050 X04 National Standards of People's Republic of China Determination of milk and milk powder mediator phenylbutazone residues Liquid chromatography - tandem mass spectrometry Posted 2008-12-31 2009-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The Standard Appendix A, Appendix B is an informative annex. This standard is proposed and managed by the State Bureau of Quality Supervision, People's Republic of China. This standard was drafted. People's Republic of China Qinhuangdao Entry-Exit Inspection and Quarantine Bureau. Drafters of this standard. Wang Fei, Wang Haiyang, Caoyan Zhong Jia light group, Zhang Jinjie, Shiyu Qiu, Pang Guofang. Determination of milk and milk powder mediator phenylbutazone residues Liquid chromatography - tandem mass spectrometry

1 Scope

This standard specifies the milk and milk powder mediator phenylbutazone residues in liquid chromatography - tandem mass spectrometry. This standard applies to the determination of milk and milk powder mediator phenylbutazone residues. The standard method detection limit. milk 5.0μg/kg, milk 40.0μg/kg.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6379.1 measurement methods and results of Accuracy (trueness and precision) - Part 1. General principles and definitions (GB/T 6379.1-2004, ISO 5725-1.1994, IDT) GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat Of the basic methods of reproduction (GB/T 6379.2-2004, ISO 5725-2.1994, IDT) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) Principle 3 Milk and milk powder mediator phenylbutazone residues with aqueous ammonia to maintain an alkaline condition, remove the fat with alcohol, ether and petroleum ether, and then in the acidic conditions Under pieces with tetrahydrofuran - Extraction Bute residual hexane mixed solution was concentrated volume for liquid chromatography - tandem mass spectrometer. External standard method Quantified.

4 Reagents and materials

Unless otherwise indicated, the reagents used were of analytical grade. 4.1 Water. GB/T 6682, level. 4.2 methanol. 4.3 ethanol. 4.4 Ammonia. chemically pure. 4.5 ether. 4.6 petroleum ether. 4.7 tetrahydrofuran. chromatography. 4.8 hexane. chromatographically pure. 4.9 acetonitrile. chromatography. 4.10 ethyl acetate. 4.11 hydrochloric acid. 4.12 ammonium formate. 4.13 dithiothreitol (dithiothreitol, CAS. 3483-12-3). C4H10O2S2, purity ≥99%. 4.14 N, N- dimethylformamide (N, N-Dimethylformamide, CAS. 68-12-2). HCON (CH3) 2, 99.5%. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 22977-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 22977-2008_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 22977-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 22977-2008_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.