GB/T 22984-2008 English PDF

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GB/T 22984-2008: Determination of the residues of metabolites of carbadox and olaquindox in milk and milk powder -- LC-MS-MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22984-2008	229	Add to Cart	3 days	Determination of the residues of metabolites of carbadox and olaquindox in milk and milk powder -- LC-MS-MS method	Valid

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Basic data

Standard ID: GB/T 22984-2008 (GB/T22984-2008)
Description (Translated English): Determination of the residues of metabolites of carbadox and olaquindox in 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: 10,168
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 milk and milk powder carbadox metabolite quinoxaline-2-carboxylic acid (quinoxaline-2-carboxylic acid) and olaquindox metabolite, 3-methyl quinoline evil forest -2-carboxylic acid (3-methyl quinoxaline -2-carboxylicacid) residues liquid chromatography-tandem mass spectrometry. This standard applies to milk and milk powder carbadox metabolite quinoxaline-2-carboxylic acid (quinoxaline-2-carboxylic acid) and olaquindox metabolite, 3-methyl- quinoxaline-2-carboxylic acid (3-methyl quinox aline-2-carboxylic acid) residues measured. This standard method detection limit: quinoxaline-2-carboxylic acid and 3-methyl- quinoxaline-2-carboxylic acid detection limit milk 0. 5��g/kg, milk is 4. 0��g/kg.

GB/T 22984-2008: Determination of the residues of metabolites of carbadox and olaquindox in 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 the residues of metabolites of carbadox and olaquindox in milk and milk powder. LC-MS-MS method ICS 67.050 X04 National Standards of People's Republic of China Milk and milk powder carbadox and olaquindox metabolites Determination of 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 Administration of Quality Supervision Inspection and Quarantine of People's Republic of China. This standard was drafted. People's Republic of China Qinhuangdao Exit Inspection and Quarantine, Shenzhen People's Republic of China Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Lin Li, Xieli Qi, Ouyang Shan, Liang, Ye Gang, Liao Jingjing, Pang Guofang. Milk and milk powder carbadox and olaquindox metabolites Determination of residues Liquid chromatography - tandem mass spectrometry

1 Scope

This standard specifies the milk and milk powder carbadox metabolite quinoline 2-carboxylic acid (quinoxaline-2-carboxylicacid) and olaquindox Metabolite 3-methyl-2-carboxylic acid (3-methylquinoxaline-2-carboxylicacid) residual amount of liquid chromatography - tandem mass spectrometry method. This standard applies to milk and milk powder carbadox metabolite quinoline 2-carboxylic acid (quinoxaline-2-carboxylicacid) and olaquindox Metabolite 3-methyl-2-carboxylic acid (3-methylquinoxaline-2-carboxylicacid) Determination of the residual. The standard method detection limit. quinoline 2-carboxylic acid and 3-methyl-quinoline-2-carboxylic acid detection limit milk 0.5μg/kg, milk Of 4.0μg/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 The sample was digested with formic acid solution, so that milk and milk powder naturally occurring enzyme inactivation and then hydrolysis, hydrochloric acid, centrifuged After filtration, the solid-phase extraction (SPE), liquid chromatography - tandem mass spectrometer, internal standard.

4 Reagents and materials

Unless otherwise indicated, the reagents used were of analytical grade water as a water GB/T 6682 regulations. 4.1 Methanol. chromatographically pure. 4.2 formic acid. Chromatographic pure. 4.3 sodium acetate. 4.4 ethyl acetate. 4.5 2% formic acid - ethyl acetate solution. 10mL to 400mL ethyl acetate was added formic acid, ethyl acetate and dilute to 500mL. 4.6 0.6% formic acid solution. 6.0mL amount of formic acid, dissolved in water, dilute to 1L. 4.7 0.1% formic acid solution. 1.0mL amount of formic acid, dissolved in water, dilute to 1L. 4.8 formic acid - methanol solution (19 + 1). 190mL with formic acid solution (4.2) and 10mL methanol (4.1) were mixed. 4.9 0.1mol/L hydrochloric acid solution. 8.3mL amount of concentrated hydrochloric acid, dissolved in water, dilute to 1L. 4.10 0.3mol/L hydrochloric acid solution. Measure 25mL of concentrated hydrochloric acid, dissolved in water, dilute to 1L. ......

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