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