SN/T 1990-2007 English PDF
Basic dataStandard ID: SN/T 1990-2007 (SN/T1990-2007)Description (Translated English): Determination of azocyclotin and cyhexatin residues in food for import and export. GC-MS method Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: X04 Classification of International Standard: 67.050 Word Count Estimation: 19,145 Date of Issue: 2007-08-06 Date of Implementation: 2008-03-01 Regulation (derived from): National-accreditation-Science [2011] 63 Issuing agency(ies): General Administration of Customs Summary: This standard specifies the food triazole ring tin tin and gas chromatography mass spectrometry. This standard applies to tea, leeks, apple, chestnut, licorice, rice, vinegar, honey, beef, chicken, fish, pork liver and tricyclic Azocyclotin tin residues and confirmation. SN/T 1990-2007: Determination of azocyclotin and cyhexatin residues in food for import and export. GC-MS method---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Determination of azocyclotin and cyhexatin residues in food for import and export.GC-MS method Exit inspection and quarantine industry standard book People's Republic of China Imported and exported food azocyclotin and cyhexatin residues Detection methods Gas Chromatography - Mass Spectrometry Posted 2007-08-06 2008-03-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released ForewordAppendix A of this standard is a normative appendix, Appendix B is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard by the People's Republic of China CIQ Shaanxi, Tianjin, People's Republic of China Exit Inspection and Quarantine, the Chinese people Inner Mongolia, People's Republic of Exit Inspection and Quarantine, People's Republic of China Shandong Exit Inspection and Quarantine, People's Republic of China Fujian access Habitat Inspection and Quarantine Bureau responsible for drafting. The main drafters of this standard. Li Jianhua, He Qiang, Kong Xianghong, love mountain music, Gebao Kun, Lin Anqing, Li Gang, Pan Guoqing, Wang Jianhua, Yang Fang. This standard is the first release of the entry-exit inspection and quarantine industry standards. Imported and exported food azocyclotin and cyhexatin residues Detection methods Gas Chromatography - Mass Spectrometry1 ScopeThis standard specifies the foods azocyclotin and cyhexatin gas chromatography - mass spectrometry method. This standard applies to tea, leeks, apples, Chinese chestnut, licorice, rice, vinegar, honey, beef, chicken, fish, liver, and three in the azocyclotin Determination of ring tin residues and confirmation.2 Method summaryThe sample remaining in the azocyclotin hydrolyzed under acidic conditions as cyhexatin, cyhexatin was extracted with acetone, petroleum ether liquid - liquid partition Purification After reagents with methyl iodide, magnesium derivatized to form tricyclic hexyl methyl tin, and then Florisil solid-phase extraction (SPE), the eluent was concentrated and given After content, gas chromatography - mass spectrometer and validation, external standard.3 Reagents and materialsUnless otherwise indicated, the reagents used were of analytical grade, water is distilled water. 3.1 acetone. 3.2 petroleum ether. boiling range 60 ℃ ~ 90 ℃. Anhydrous ether 3.3; dehydrated with metallic sodium. 3.4 methyl magnesium iodide solution. synthetic methods in Appendix A. 3.5 hydrobromide. 3.6 anhydrous sodium sulfate. After burning 650 ℃ 4h, stored in a sealed container in the back. 3.7 10% hydrochloric acid solution. 3.8 aqueous sodium chloride. 20g/L. 3.9 azocyclotin standard substance (Azocyclotin, C20H35N3Sn, CASN o. 41083-11-8). purity greater than or equal to 98%. 3.10 cyhexatin standard substance (Cyhexatin, C18H34OSn, CASN o. 13121-70-5). purity greater than or equal to 98%. 3.11 Standard stock solution. accurately weigh the right amount of cyhexatin and azocyclotin standards were formulated with acetone to 100μg/mL standard Stock solution stored at 4 ℃. 3.12 standard working solution. Diluted test requirements in accordance with acetone to the corresponding standard working solution, stored at 4 ℃. 3.13 florisil (Florisil) SPE. 1g, 6mL.4 instruments and equipment4.1 Gas chromatography - mass spectrometry with EI source. 4.2 Organization mashed machines. 4.3 mill. 4.4 homogenizer. 4.5 oscillator. 4.6 rotary evaporator. 4.7 Solid phase extraction unit with a vacuum pump. 4.8 low-speed centrifuge. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 1990-2007_English be delivered?Answer: Upon your order, we will start to translate SN/T 1990-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically in 9 seconds (download/delivered in 9 seconds). The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of SN/T 1990-2007_English with my colleagues?Answer: Yes. 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