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Determination of validamycin residues in food for import and export. LC-MS/MS method
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SN/T 2387-2009
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Basic data | Standard ID | SN/T 2387-2009 (SN/T2387-2009) | | Description (Translated English) | Determination of validamycin residues in food for import and export. LC-MS/MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.050 | | Word Count Estimation | 18,149 | | Date of Issue | 2009-09-02 | | Date of Implementation | 2010-03-16 | | Regulation (derived from) | Entry-Exit Inspection and Quarantine circular industry standards (2009. 09. 02) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the import and export food Jinggangmeisu residual liquid chromatography mass spectrometry/mass spectrometry. This standard applies to rice, cabbage, onions, HU Radka, tomato, cucumber, spinach, mushrooms, pears, twist oak, almond, tea, pork, liver, tilapia, shrimp Jinggangmeisu detection and confirmation of residues. | SN/T 2387-2009: Determination of validamycin residues in food for import and export. LC-MS/MS method
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Determination of validamycin residues in food for import and export.LC-MS/MS method
Exit inspection and quarantine industry standard book People's Republic of China
Determination Jinggangmeisu residues in food import and export
Liquid chromatography - mass spectrometry/mass spectrometry
Posted 2009-09-02
2010-03-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
The Standard Appendix A and Appendix B are informative.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. Xiamen, People's Republic of China Exit Inspection and Quarantine, Shanghai Jiaotong University.
The main drafters. Zhang Zhigang, Zhou Yu, Xu Duiming, Linli Yi, Zhong Liping, Yang Lizhong, Chen Ping heron, Wangzheng Wu, Wu Shimin.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination Jinggangmeisu residues in food import and export
Liquid chromatography - mass spectrometry/mass spectrometry
1 Scope
This standard specifies the residues in imported and exported food Jinggangmeisu liquid chromatography - mass spectrometry/mass spectrometry methods.
This standard applies to rice, cabbage, onions, carrots, tomatoes, cucumbers, spinach, mushrooms, pears, lemons, almonds, tea, pork, liver, Romania
Non-fish, shrimps Jinggangmeisu residue detection and confirmation.
2 Method summary
The sample Jinggangmeisu residue extracted with aqueous methanol by HLB solid phase extraction column or liquid-liquid extraction with ethyl acetate purified by liquid
Chromatography - mass spectrometry/mass spectrometry detection and confirmation, external standard.
3 Reagents and materials
Unless otherwise stated, all reagents HPLC grade water is deionized water.
3.1 ammonium acetate.
3.2 methanol.
3.3 acetonitrile.
3.4 ethyl acetate.
3.5 glacial acetic acid.
3.6 methanol + water (9 + 1, volume ratio). Measure 90mL of methanol and 10mL of water, and mix.
3.7 5mmol/L ammonium acetate buffer solution (pH4.5). Weigh 0.385g ammonium acetate dissolved in water and dilute to 1000mL, ice B
Acid to adjust the pH to 4.5 ± 0.1.
3.8 Standard substance. Jinggangmeisu A (validamycinA, CAS. 37248-47-8), molecular formula. C20H35NO13, purity 91.0%.
3.9 standard stock solution. Weigh 2mg (accurate to 0.1mg) Jinggangmeisu standard product, dissolved in water and dilute to 25mL brown capacity
Bottle, formulated at a concentration of 80mg/L of standard stock solution.
3.10 standard solution matrix. if necessary, with a blank sample extract obtained in accordance with the sample preparation step, preparation of different concentrations of base
Quality standard solution, using now.
3.11 HLB column. 6mL, 200mg or equivalent person. Before using successively activating 6mL methanol and 6mL water.
3.12 0.22μm membrane, bipolar.
4 instruments and equipment
4.1 liquid chromatography tandem quadrupole mass spectrometer. with atmospheric pressure chemical ionization (APCI).
4.2 Analysis of balance. a sense of the amount of 0.1mg and 0.01g.
4.3 vortex mixer.
4.4 homogenizer.
4.5 centrifuge. speed is greater than 3000r/min.
4.6 nitrogen blowing concentrators.
4.7 centrifuge tube. 50mL and 50mL centrifuge tube glass stoppered glass tube.
4.8 30mL graduated test tube. minimum scale 0.1mL.
4.9 pH meter. a sense of volume 0.1.
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