GB/T 22973-2008 English PDF

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GB/T 22973-2008: Determination of melengestrol acetate, chlormadinone acetate and megestrol acetate residues in milk and milk powder -- HPLC-MS-MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22973-2008	229	Add to Cart	3 days	Determination of melengestrol acetate, chlormadinone acetate and megestrol acetate residues in milk and milk powder -- HPLC-MS-MS method	Valid

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Basic data

Standard ID: GB/T 22973-2008 (GB/T22973-2008)
Description (Translated English): Determination of melengestrol acetate, chlormadinone acetate and megestrol acetate residues in milk and milk powder -- HPLC-MS-MS method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 10,161
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 melengestrol acetate (melengestrol acetate), Chlormadinone (chlormadinoneacetate) and megestrol acetate (megestrolacetate) residues liquid chromatography-tandem mass spectrometry.

GB/T 22973-2008: Determination of melengestrol acetate, chlormadinone acetate and megestrol acetate residues in milk and milk powder -- HPLC-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 melengestrol acetate, chlormadinone acetate and megestrol acetate residues in milk and milk powder. HPLC-MS-MS method ICS 67.050 X04 National Standards of People's Republic of China Milk and milk powder melengestrol acetate, Chlormadinone acetate and megestrol acetate, progesterone Determination of residues of 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 is drafted by. People's Republic of China Qinhuangdao Exit Inspection and Quarantine, People's Republic of China Shanghai Entry-Exit Inspection Quarantine Bureau. The main drafters of this standard. Wang Chuan now, Tang Yifeng, Fang Xiaoming, Sheng Yonggang, Pang Guofang. Milk and milk powder melengestrol acetate, Chlormadinone acetate and megestrol acetate, progesterone Determination of residues of liquid chromatography - tandem mass spectrometry

1 Scope

This standard specifies the milk and milk powder melengestrol acetate (melengestrolacetate), cyproterone acetate (chlormadinone acetate) and megestrol acetate (megestrolacetate) residual amount of liquid chromatography - tandem mass spectrometry. This standard applies to progesterone, cyproterone acetate and megestrol acetate measured residues in milk and milk powder in acetic acid Royalton. The detection limit of this standard. Milk melengestrol acetate, megestrol acetate and cyproterone acetate, detection limits were 2μg/kg; Milk melengestrol acetate, megestrol acetate and cyproterone acetate, detection limits were 20μg/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 After extracting the fat from the milk samples were extracted with acetonitrile, after saponification, the cyanopropyl solid phase extraction (SPE), C18 column separation, liquid Chromatography - tandem mass spectrometry, external standard.

4 Reagents and materials

Unless otherwise indicated, the reagents used were of analytical grade. 4.1 Water. GB/T 6682, level. 4.2 acetonitrile. chromatography. 4.3 Methanol. chromatographically pure. 4.4 ethyl acetate. chromatography. 4.5 hexane. chromatographically pure. 4.6 Magnesium chloride (MgCl2 · 6H2O). 4.7 sodium hydroxide. 4.8 formic acid. 4.9 25% aqueous ammonia. 4.10 95% ethanol. 4.11 petroleum ether. 4.12 over anhydrous sodium sulfate. ......

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