SN/T 2149-2008 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2149-2008	RFQ	ASK	7 days	Determination of benoxacor, anilofos, allidochlor 110 pesticides residues in foodstuffs for import and export. GC-MS method	Obsolete

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Basic data

Standard ID: SN/T 2149-2008 (SN/T2149-2008)
Description (Translated English): Determination of benoxacor, anilofos, allidochlor 110 pesticides residues in foodstuffs for import and export. GC-MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: C53
Word Count Estimation: 48,472
Date of Issue: 2008-09-04
Date of Implementation: 2009-03-16
Regulation (derived from): Industry standard filing Notice No. 11 of 2008
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the food 110 kinds of pesticide residues detected by gas chromatography mass spectrometry. This standard applies to rice, brown rice, barley, wheat, corn 110 kinds of pesticide residues.

SN/T 2149-2008: Determination of benoxacor, anilofos, allidochlor 110 pesticides residues in foodstuffs for import and export. GC-MS method

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Determination of benoxacor, anilofos, allidochlor 110 pesticides residues in foodstuffs for import and export.GC-MS method Exit inspection and quarantine industry standard book People's Republic of China Imported and exported food benoxacor, anilofos, diallyl Detection alachlor and other 110 kinds of pesticide residues Gas chromatography - mass spectrometry Posted 2008-09-04 2009-03-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

The Standard Appendix A and E are normative appendix, Appendix B, Appendix C, Appendix D 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 Exit Inspection and Quarantine of Heilongjiang, People's Inner Mongolia, the Republic of CIQ. The main drafters of this standard. Li Shujuan, Li Gang, Chen Dong, on behalf of the Chinese Hui, Feng Fan, Feng Nan, Luo , celebrate Kang, Yang Chang-chih, Li Gang (Inner Mongolia Old), Caikuai Xia, Shi Jing, Tang Ying Zhang. This standard is the first release of the entry-exit inspection and quarantine industry standards. Imported and exported food benoxacor, anilofos, diallyl Detection alachlor and other 110 kinds of pesticide residues Gas chromatography - mass spectrometry

1 Scope

This standard specifies the 110 food pesticide residues detected by gas chromatography - mass spectrometry method. This standard applies to the determination of rice, brown rice, barley, wheat, corn and 110 kinds of pesticide residues.

2 Method summary

Sample water after soaking shaking extraction with acetone, followed by liquid - liquid partition, gel permeation chromatography and solid phase extraction to extract intake Purifies gas chromatography - mass spectrometry detection, external standard calibration curve.

3 Reagents and materials

Unless otherwise indicated, the reagents used were of analytical grade, water is distilled water or equivalent purity. 3.1 acetone. chromatography. 3.2 acetone. 3.3 dichloromethane. 3.4 cyclohexane. 3.5 ethyl acetate. 3.6 acetonitrile. 3.7 toluene. 3.8 sodium chloride. 3.9 anhydrous sodium. Before using burning at 650 ℃ 4h, stored in a desiccator, cool reserve. 3.10 sodium chloride solution. 15% (mass concentration), weighed 15g of sodium chloride was dissolved in 100mL of water, shake spare. 3.11 cyclohexane - ethyl acetate (1 + 1, volume ratio). 3.12 acetonitrile - toluene (3 + 1, volume ratio). 3.13 Pesticide Standards. Standards list in Appendix A, reference material purity ≥95%. 3.14 pesticides standard solution 3.14.1 Standard stock solution Accurately weighed amount of standard (accurate to 0.1mg), was dissolved in acetone (3.1), formulated at a concentration of 500μg/mL standard stock Solution, -18 ℃ freezing dark, valid for three months. 3.14.2 intermediate mixed standard solution 110 kinds of pesticides will be divided into five groups, grouping in Appendix A. Standard stock solution Pipette formulated with a volume of acetone (3.1) into Mixed standard solution 10mg/L of, 4 ℃ refrigerator protected from light, valid for one month. 3.14.3 matrix mixed standard working solution Mixed standard solution were moved to take a certain volume, to add after the blank sample matrix solution of 6.1 to 6.2 after the purification step, mixing, With acetone (3.1) volume to 1.0mL. Matrix mixed standard working solution should now use the existing. 3.15 aid. celite545, or equivalent person. 3.16 on non-porous graphite carbon/amidopropyl silylated silica as a solid phase extraction column packing. Envi-Carb/LC-NH2, ......

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