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SN/T 4584-2016: Determination of valnemulin and tiamulin residues in foodstuffs of animal origin for export--LC-MS/MS method
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| SN/T 4584-2016 | English | 509 |
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Determination of valnemulin and tiamulin residues in foodstuffs of animal origin for export--LC-MS/MS method
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SN/T 4584-2016
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Basic data | Standard ID | SN/T 4584-2016 (SN/T4584-2016) | | Description (Translated English) | Determination of valnemulin and tiamulin residues in foodstuffs of animal origin for export--LC-MS/MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X04 | | Word Count Estimation | 22,275 | | Date of Issue | 2016-08-23 | | Date of Implementation | 2017-03-01 | | Regulation (derived from) | State-Quality-Inspection-Certification (2016)438 | | Issuing agency(ies) | General Administration of Customs | SN/T 4584-2016: Determination of valnemulin and tiamulin residues in foodstuffs of animal origin for export--LC-MS/MS method
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(Determination of veronamulin and tiamulin residues in export-origin foodstuffs by liquid chromatography-mass spectrometry/ mass spectrometry)
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Exporting animal-derived foods to Vaughan and tiamulin
Determination of residual amount by liquid chromatography-mass spectrometry/mass spectrometry
Published on.2016-08-23
2017-03-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Qinhuangdao Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Liu Xiaomao, Li Xuemin, Chang Qiaoying, Wang Fei, Ge Na, Yang Zhiwei, Zhang Shoujun, Cao Yanzhong, Zhang Jinjie.
Exporting animal-derived foods to Vaughan and tiamulin
Determination of residual amount by liquid chromatography-mass spectrometry/mass spectrometry
1 Scope
This standard specifies the liquid chromatography-mass spectrometry/mass spectrometry method for the determination of the residues of valnemulin and tiamulin in animal-derived foods.
This standard applies to the quantitative determination and characterization of the residues of valnemulin and tiamulin in animal muscle tissue, liver, fish, egg and milk.
Confirmation.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
3 Method summary
The residues of valnemulin and tiamulin in the sample were extracted with acetonitrile, purified by MCXSPE cartridge, separated by C18 column, and electrosprayed.
The ion source (ESI) positive ion scanning method was performed in a multi-reaction monitoring (MRM) mode and quantified by an external standard method.
4 reagents and materials
Unless otherwise stated, the reagents used are of excellent grade and the water is the first grade water specified in GB/T 6682.
4.1 Methanol. Chromatographically pure.
4.2 Acetonitrile. chromatographically pure.
4.3 Formic acid.
4.4 n-hexane.
4.5 Ammonia. 25%.
4.6 Sodium chloride.
4.7 anhydrous sodium sulfate. 650 ° C burning for 4h, cooled to room temperature in a desiccator, stored in a sealed bottle for use.
4.8 Formic acid-water (1 19, by volume). Take 5 mL of formic acid (4.3) to a volume of 100 mL with water.
4.9 Ammonia-Methanol (1 19, by volume). Take 5 mL of ammonia (4.5) and dilute to 100 mL with methanol (4.1).
4.10 Acetonitrile-water (13, volume ratio). Take 25 mL of acetonitrile (4.2) to a volume of 100 mL with water.
4.11 Reference material. Worney Miaolin (CAS No.. 101312-92-9); purity greater than or equal to 98%; tiamulin (CAS number. 55297-95-
5); purity is greater than or equal to 98%.
4.12 Worney Miaolin standard stock solution. 1.0mg/mL. Weigh the right amount of the Wornhill forest standard substance, dissolve it in methanol and prepare it.
Standard stock solution of 1.0 mg/mL. Store in the -18 ° C freezer in the dark.
4.13 tiamulin standard stock solution. 1.0mg/mL. Weigh the appropriate amount of tiamulin standard substance, dissolve it with methanol and prepare it.
Standard stock solution of 1.0 mg/mL. Store in the -18 ° C freezer in the dark.
4.14 Mixed standard working solution of valnemulin and tiamulin. 1.0 μg/mL. Draw the right amount of Wornham's standard stock solution (4.12) and
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