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Determination of pyriproxyfen residues in foodstuffs for import and export. HPLC-MS/MS method
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SN/T 2623-2010
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Basic data | Standard ID | SN/T 2623-2010 (SN/T2623-2010) | | Description (Translated English) | Determination of pyriproxyfen residues in foodstuffs for import and export. HPLC-MS/MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.050 | | Word Count Estimation | 18,162 | | Date of Issue | 2010-05-27 | | Date of Implementation | 2010-12-01 | | Regulation (derived from) | National Quality Inspection [2010] No. 290 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the import and export food pyriproxyfen residue of the sample preparation and measurement methods. This standard applies to rice, soybeans, spinach, lemon, tea, mushrooms, beef, liver and milk pyriproxyfen residue testing. | SN/T 2623-2010: Determination of pyriproxyfen residues in foodstuffs for import and export. HPLC-MS/MS method
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Determination of pyriproxyfen residues in foodstuffs for import and export.HPLC-MS/MS method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Imported and exported food pyriproxyfen residues detection method
Liquid chromatography - mass spectrometry/mass spectrometry
Issued on. 2010-05-27
2010-12-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this standard. Guo Dehua, Deng Xiaojun, Zhao Guangyu, Sheng Yonggang Zhou Yao, Zhao Shanzhen.
Please note that some content of this document may involve patents, the issuing authority of this document does not assume responsibility for the identification of these patents.
Imported and exported food pyriproxyfen residues detection method
Liquid chromatography - mass spectrometry/mass spectrometry
1 Scope
This standard specifies the sample preparation and determination methods imported and exported food pyriproxyfen residues.
This standard applies to rice, soybeans, spinach, lemon, tea, mushrooms, beef, liver and milk pyriproxyfen residues detected.
2 Method summary
Sample remaining pyriproxyfen in sodium acetate buffer role acetonitrile with acidic extraction, and then purified PSA filler, liquid chromatography - mass spectrometry
Measured, quantified by external standard.
3 Reagents and materials
Unless otherwise specified, use the analytical reagent, the water is deionized water or equivalent purity.
3.1 anhydrous magnesium sulfate.
3.2 anhydrous sodium acetate.
Acetate 3.3. HPLC grade.
3.4 acetonitrile. HPLC grade.
3.5 1% acetic acid in acetonitrile.
3.6 N- secondary amine (PSA) packing. 50μm, HPLC grade.
3.7 formic acid. HPLC grade.
3.8 ammonium acetate.
3.9 0.025% aqueous formic acid (containing 5mmol/L ammonium acetate). Imbibe 0.25mL acid (3.7) and weighed 0.386g ammonium acetate
(3.8) in 1L flask, dissolved in water and diluted to volume to 1L.
3.10 pyriproxyfen standards (Pyriproxyfen, C20H19NO3, CAS Number. 95737-68-1). purity of greater than 99%.
3.11 pyriproxyfen stock standard solution. Accurately weigh an appropriate amount of pyriproxyfen standards, dissolved in acetonitrile and diluted formulated to 100μg/mL standard
Quasi stock solution below 4 ℃.
3.12 pyriproxyfen standard working solution. if necessary, diluted with 10% acetonitrile in water to the appropriate concentration of the standard working solution, the following 4 ℃.
3.13 microporous membrane. 0.2μm, the organic phase type.
3.14 stopper polypropylene centrifuge tube. 2mL and 50mL.
4 instruments and equipment
4.1 Liquid chromatography - mass spectrometry/mass spectrometer. with electrospray ionization (ESI) ion source.
4.2 Centrifuge. 4000r/min.
4.3 Analysis of balance. a sense of volume and 0.0001g 0.01g.
4.4 mill.
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