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Determination of cloransulam-methyl residues in food for import and export. LC-MS/MS
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SN/T 2386-2009
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PDF similar to SN/T 2386-2009
Basic data | Standard ID | SN/T 2386-2009 (SN/T2386-2009) | | Description (Translated English) | Determination of cloransulam-methyl residues in food for import and export. LC-MS/MS | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.050 | | Word Count Estimation | 22,275 | | Date of Issue | 2009-09-02 | | Date of Implementation | 2010-03-16 | | Quoted Standard | GB/T 6682 | | 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 methyl esters in food alachlor chlorine residual liquid chromatography tandem mass spectrometry detection method. This standard applies to corn, rice, soybeans, chestnuts, walnuts, cabbage, tomatoes, peppers, spinach, onions, oranges, strawberries, mango, cherries, mushrooms, tea and other plant-derived products and chicken liver, liver, milk, etc. products of animal origin methyl ester alachlor chlorine residual testing. | SN/T 2386-2009: Determination of cloransulam-methyl residues in food for import and export. LC-MS/MS
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Determination of cloransulam-methyl residues in food for import and export.LC-MS/MS
Exit inspection and quarantine industry standard book People's Republic of China
Determination of chlorine ester sulfentrazone residues in imported and exported food
Liquid chromatography - mass spectrometry/mass spectrometry
LC-MS/MS
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, Appendix B and Appendix C are informative appendices.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Beijing Entry-Exit Inspection and Quarantine Bureau.
The main drafters. Zhang Rong, Wang Jinhua, Lu Xiaoyu, apricot, Feng Qian, Liu Yan.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of chlorine ester sulfentrazone residues in imported and exported food
Liquid chromatography - mass spectrometry/mass spectrometry
1 Scope
This standard specifies the foods chlorine esters alachlor residue in liquid chromatography - tandem mass spectrometry.
This standard applies to corn, rice, soybeans, chestnuts, walnuts, cabbage, tomatoes, peppers, spinach, onions, oranges, strawberries, mango, cherries, sweet
Chloro ester sulfentrazone residues detected mushrooms, tea and other products of plant origin and chicken liver, pork liver, milk and other animal products.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms of dated references, all subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to study under this agreement is standard
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Laboratory use specifications and test methods GB/T 6682 Analysis
3 PRINCIPLE OF THE METHOD
Chlorine residual samples ester alachlor in 1% acetic acid in acetonitrile extraction, dispersive SPE purification agent, liquid chromatography - tandem mass spectrometer,
External standard.
4 Reagents and materials
Unless otherwise indicated, the reagents used were HPLC grade water as a water line with GB/T 6682 regulations.
4.1 acetonitrile.
4.2 ammonium acetate.
4.3 acetic acid.
4.4 formic acid.
4.5 anhydrous magnesium. AR.
4.6 anhydrous sodium acetate. AR.
4.7 acetate - acetonitrile (1 + 99, by volume). Take 10mL acetic acid (4.3), was added 990mL of acetonitrile (4.1) and mix.
4.8 5mmol/L ammonium acetate solution (containing 0.1% formic acid). Weigh accurately 77.0mg ammonium acetate (4.2) in 200mL flask, first
After adding a small amount of water to dissolve 200μL formic acid (4.4), then with water to volume, and mix, using now.
4.9 chloro ester alachlor standards (cloransulam-methyl). CAS. 147150-35-4, molecular formula C15H13FN5O5SCl, molecular
429.81 quality, purity not less than 99%.
Alachlor standard stock solution 4.10 chloro ester. Accurately weigh an appropriate amount of chlorine ester alachlor standards (accurate to 0.1mg), dissolve with acetonitrile with
Standard stock solution made 1000μg/mL, and stored at -18 ℃.
4.11 chloro ester alachlor standard solution. diluted with acetonitrile needed to 1μg/mL standard solution, stored at -18 ℃.
4.12 matrix blank solution. negative samples after different substrates were treated in accordance with Chapter 7 of the resulting solution.
4.13 matrix standard working solution. According to the experiments need to learn the right amount of chlorine ester alachlor standard working solution was diluted with an appropriate matrix blank solution
Concentration of standard working solution, using now.
4.14 GCB adsorbent. 120μm ~ 400μm.
4.15 N- secondary amine (PSA) sorbent. 40μm ~ 60μm.
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