SN/T 2214-2008 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2214-2008	679	Add to Cart	3 days	Determination of fluroxypyr, diflufenzopyr, dithiopyr and thiazopyr residues in food of plant origin for import and export. LC-MS/MS method	Obsolete

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Basic data

Standard ID: SN/T 2214-2008 (SN/T2214-2008)
Description (Translated English): Determination of fluroxypyr, diflufenzopyr, dithiopyr and thiazopyr residues in food of plant origin for import and export. LC-MS/MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Word Count Estimation: 17,140
Date of Issue: 2008-11-18
Date of Implementation: 2009-06-01
Regulation (derived from): National Quality Inspection [2008] No. 577
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the foods of plant origin fluroxypyr, dithiopyr pyridine, pyridine grass hydrazone fluoride pyridine four kinds of pyridine and thiophene grass herbicides liquid chromatography mass spectrometry/mass spectrometry. This standard applies to cabbage, corn and oranges fluroxypyr, dithiopyr pyridine, thiophene fluoropyrazole grass grass pyridine hydrazone and four kinds of pyridine herbicides quantitative determination and confirmation.

SN/T 2214-2008: Determination of fluroxypyr, diflufenzopyr, dithiopyr and thiazopyr residues in food of plant origin for import and export. LC-MS/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 fluroxypyr, diflufenzopyr, dithiopyr and thiazopyr residues in food of plant origin for import and export.LC-MS/MS method Exit inspection and quarantine industry standard book People's Republic of China Importers of plant origin foods fluroxypyr, dithiopyr pyridine, Determination diflufenzopyr pyridine and thiophene grass herbicide residues Liquid chromatography - mass spectrometry/mass spectrometry Posted 2008-11-18 2009-06-01 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 Committee. This standard was drafted. People's Republic of China, Shenzhen CIQ. The main drafters of this standard. Jinbao Hui, Chen Bo, Xie Liqi, Huahong Hui, Zhang Jianying. This standard is the first release of the entry-exit inspection and quarantine industry standards. Importers of plant origin foods fluroxypyr, dithiopyr pyridine, Determination diflufenzopyr pyridine and thiophene grass herbicide residues Liquid chromatography - mass spectrometry/mass spectrometry

1 Scope

This standard specifies the botanical foods fluroxypyr, dithiopyr pyridine, thiophene diflufenzopyr and grass herbicides pyridine pyridine four kinds of liquid chromatography - Mass spectrometry/mass spectrometry. This standard applies to cabbage, corn and oranges fluroxypyr, dithiopyr piperidine, diflufenzopyr thiophene and pyridine four kinds of grass herbicides pyridine The quantitative determination and confirmation.

2 Method summary

Sample residues fluroxypyr, dithiopyr piperidine, diflufenzopyr pyridine and thiophene grass extracted with acetonitrile, dried SupelcleanC18 SPE net Technology, using liquid chromatography - mass spectrometry/mass spectrometry and confirmed, external standard.

3 reagent material

Unless otherwise indicated, the reagents used were of analytical grade, water is deionized water. 3.1 acetonitrile. chromatography. 3.2 Methanol. chromatographically pure. 3.3 formic acid. Chromatographic pure. 3.4 sodium chloride. 3.5 0.1% formic acid aqueous solution. Imbibe 1mL acid, transferred into a 1000mL volumetric flask with water to volume, and mix well. 3.6 0.1% formic acid - methanol (50 + 50, by volume). amount of 0.1% formic acid aqueous solution (3.5) 500mL to 1000mL volumetric flask with Methanol to volume, and mix well. 3.7 pyridine herbicides standards. fluroxypyr (C7H5C12FN2O3, CASN o. 69377-81-7), dithiopyr pyridine (C15H12F2N4O3, CASN o... 97886-45-8), thiophene grass pyridine (C16H17F5N2O2S, CASN o. 117718-60-2), greater than 99% purity. Diflufenzopyr (C15H16F5NO2S2, CASN o. 109293-97-2) as the standard liquid, at a concentration of 10mg/L, the solvent is acetonitrile. 3.8 standard stock solution. accurately weighed amount of fluroxypyr, dithiopyr pyridine, thiophene grass pyridine were dissolved in methanol and set the volume to brown volumetric flask Concentration equivalent to 500mg/L, a stock solution can be stored for 6 months at 0 ℃ ~ 4 ℃ in the dark. 3.9 mixed standard intermediate solution. accurately draw the right amount of fluroxypyr, dithiopyr pyridine, thiophene grass pyridine standard stock solution in a brown volumetric flask, and add Revenue and other pyridine herbicide concentration of diflufenzopyr with methanol to volume, the concentration of various herbicides as pyridine 1mg/L, this intermediate solution can be stored for one month at 0 ℃ ~ 4 ℃ in the dark. 3.10 mixed standard working solution. draw mixed standard amount of intermediate solution (3.9) according to need before use, with a blank sample matrix solution Liquid formulation. 3.11 SPE. SupelcleanC18,500mg/3mL, or equivalent person. 5mL acetonitrile and treated before use, holding cylinder Moist. 3.12 microporous membrane. 0.22μm, the organic phase type.

4 instruments and equipment

4.1 Liquid chromatography - mass spectrometry/mass spectrometer with ESI ion source. 4.2 Balance. a sense of volume and 0.0001g 0.01g. ......

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