SN/T 1968-2007 English PDFUS$609.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 1968-2007: Determination of prometryne residues in food for import and export. GC-MS Method Status: Valid
Basic dataStandard ID: SN/T 1968-2007 (SN/T1968-2007)Description (Translated English): Determination of prometryne 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: 19,168 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 Prometryne Residues of the sample preparation and gas chromatography mass spectrometry. This standard applies to rice, peanuts, HU Radka, broccoli, tomatoes, onions, mushrooms, apples, oranges Nan, chestnut, chicken, beef, chicken kidney, seaweed prometryn residues and confirmation. SN/T 1968-2007: Determination of prometryne 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 prometryne 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 Prometryne Residue Detection 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 an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. China Inspection and Quarantine Science Research Institute, People's Republic of China Jiangsu Exit Inspection and Quarantine, the People's Republic of China Fujian Exit Inspection and Quarantine and the State. The main drafters of this standard. Chen Dongdong, LI Shu-juan, Li Xiaojuan, Caihui Xia, Ann Juan, Feng Fan, Li Jianzhong, Tang Ying Zhang. This standard is the first release of the entry-exit inspection and quarantine industry standards. Imported and exported food Prometryne Residue Detection Gas chromatography - mass spectrometry1 ScopeThis standard specifies the sample preparation and gas chromatography in food Prometryne Residues of - mass spectrometry methods. This standard applies to rice, peanuts, carrots, broccoli, tomatoes, onions, mushrooms, apples, oranges, chestnuts, chicken, beef, chicken kidneys, Laver Prometryne measured net residues and confirmation.2 Method summarySample remaining Prometryne extracted with acetonitrile, cation exchange solid phase extraction column, graphite, carbon black SPE, N- propyl ethylene Ammonia bonded silica solid-phase extraction (SPE), gas chromatography - mass spectrometer, external standard.3 Reagents and materialsUnless otherwise specified, the reagents were of analytical grade, water is distilled water. 3.1 acetonitrile. AR, chromatography. 3.2 methanol. 3.3 ethyl acetate. 3.4 acetone. 3.5 dichloromethane. 3.6 hexane. AR, chromatography. Ammonia 3.7. 25% concentration. 3.8 dipotassium hydrogen. 3.9 potassium dihydrogen phosphate. 3.10 Anhydrous sodium sulfate. burning at 650 ℃ 4h, stored in a desiccator, cool reserve. 3.11 sodium chloride. 3.12 phosphate buffer solution (0.5mol/L, pH7.0). Weigh 52.7g 30.2g dipotassium hydrogen phosphate and potassium dihydrogen phosphate, water 1L Dissolved, 2mol/L sodium hydroxide to pH 7.0. 3.13 ethyl acetate + n-hexane mixed solution (1 + 4). Measure 20mL ethyl acetate and 80mL hexane, and mix. 3.14 ammonia - methanol mixed solution (1mol/L). the exact amount of 1.86mL ammonia with methanol to 25mL. 3.15 Prometryne standard substance. purity greater than or equal to 99%, English common name (prometryne), CASN o. 7287-19-6. 3.16 Prometryne standard solution. Accurately weigh an adequate amount Prometryne standard with acetonitrile dubbed the concentration of 100.0mg/L standard stock Solution, 4 ℃ stored in the dark. Diluted with acetonitrile stock solution required standard working solution of appropriate concentration, using now. 3.17 cation exchange solid phase extraction column (SCX). 500mg, 3mL, or equivalent person. 3.18 graphitized carbon black SPE (Envi-Carb). 500mg, 6mL, or equivalent person. 3.19 N- propyl ethylene diamine bonded silica solid phase extraction column (PSA).200mg, 3mL, or equivalent person.4 instruments and equipment4.1 Gas chromatography - mass spectrometry. with electron impact ionization (EI). 4.2 Sample grinder. ...... |
