SN/T 2324-2009 English PDF

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SN/T 2324-2009: Determination of 33 organophosphrous pesticides residues(butamifos, chlorpyrifos, chlorpyrifos-methyl et al)in foodstuffs for import and export
Status: Valid

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SN/T 2324-2009	1009	Add to Cart	7 days	Determination of 33 organophosphrous pesticides residues(butamifos, chlorpyrifos, chlorpyrifos-methyl et al)in foodstuffs for import and export	Valid

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Basic data

Standard ID: SN/T 2324-2009 (SN/T2324-2009)
Description (Translated English): Determination of 33 organophosphrous pesticides residues(butamifos, chlorpyrifos, chlorpyrifos-methyl et al)in foodstuffs for import and export
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Word Count Estimation: 41,452
Date of Issue: 2009-07-07
Date of Implementation: 2010-01-16
Regulation (derived from): Industry standard filing Notice 2009 No. 10 (No. 118 overall)
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the categories of food grains, 33 organophosphorus pesticide residues [weed suppression phosphorus, chlorpyrifos, chlorpyrifos-methyl, dichlorvos, edifenphos, fenitrothion, fenthion, fonofos, isofenphos, Oxygen isofenphos, tolclofos methyl, triazophos, chlorfenvinphos (E), chlorfenvinphos (Z), Ethoprophos, terbufos, diazinon, methyl chlorfenvinphos (E), methyl worm fear (Z), EPN, B pirimiphos fensulfothion, malathion, Sulfotep, parathion, methyl parathion, Phenthoate, pirimiphos-methyl, quinalphos, killing insect fear, methyl disulfoton, finished off parathion, parathion finished off sulfone] Gas Chromatography and Chromatography Mass Spectrometry methods. This standard applies to import rice, brown rice, corn, barley, wheat, 33 kinds of organophosphorus pesticide residues and confirmation.

SN/T 2324-2009: Determination of 33 organophosphrous pesticides residues(butamifos, chlorpyrifos, chlorpyrifos-methyl et al)in foodstuffs for import and export

---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 33 organophosphrous pesticides residues (butamifos, chlorpyrifos, chlorpyrifos-methyl et al) in foodstuffs for import and export Exit inspection and quarantine industry standard book People's Republic of China Import and export food in weed suppression phosphorus, chlorpyrifos, chlorpyrifos-methyl, etc. 33 kinds of detection methods organophosphorus pesticide residues Posted 2009-07-07 2010-01-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

Appendix A of this standard is a normative appendix, Appendix B, Appendix C, Appendix D are informative appendices. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. Jiangxi People's Republic of China Entry-Exit Inspection and Quarantine Shanxi People's Republic of China Bureau, Xiamen People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. Wenzhi Hai, accounting Chunrui, Xue Ping, left Hagen, Guo Ping, Zhang Zhigang. This standard is the first release of the entry-exit inspection and quarantine industry standards. Import and export food in weed suppression phosphorus, chlorpyrifos, chlorpyrifos-methyl, etc. 33 kinds of detection methods organophosphorus pesticide residues

1 Scope

This standard specifies the cereal food 33 organophosphorus pesticide residues [weed suppression phosphorus, chlorpyrifos, chlorpyrifos-methyl, dichlorvos, blast enemy Phosphorus, fenitrothion, fenthion, fonofos, isofenphos, oxygen isofenphos, tolclofos-methyl, triazophos, chlorfenvinphos (E), chlorfenvinphos (Z), propionic line Phosphorus, terbufos, diazinon, chlorfenvinphos methyl (E), methyl chlorfenvinphos (Z), benzene parathion, pirimiphos B, fensulfothion, malathion, sulfotep on Parathion, methyl parathion, phenthoate, pirimiphos-methyl, quinoline parathion, insecticidal fear, methyl ethyl disulfoton, finished off parathion, parathion finished off sulfone] of gas chromatography Spectrum detection method and gas chromatography - mass spectrometry confirmed methods. This standard applies to the import and export of rice, brown rice, corn, barley, wheat 33 organophosphorus pesticide residues determination and confirmation.

2 Method summary

Pesticide residues in samples with water - acetone vortex extracted with dichloromethane liquid - liquid distribution, methylene chloride layer was concentrated and dissolved constant volume by gel After the column to remove grease, corn samples were then graphitized carbon black pigment removal of solid phase extraction column, gas phase chromatography and gas chromatography - mass spectrometry Confirmed.

3 Reagents and materials

Unless otherwise specified, use the analytical reagent, ultra-pure water. 3.1 acetone. residual level. 3.2 dichloromethane. residual level. 3.3 Cyclohexane. Residual level. 3.4 ethyl acetate. residual level. 3.5 NaCl. 15% (mass concentration), 15g of sodium chloride was dissolved in water and diluted to 100mL. 3.6 anhydrous sodium sulfate. anhydrous sodium sulfate in 650 ℃ burning 4h, stored in a sealed container in the back. 3.7 graphitized carbon black SPE. 0.25g, ENVI-Carb, or equivalent person. 3.8 33 kinds of organophosphorus pesticide standards. see Appendix A. 3.9 preparation of standard stock solution. accurately weighed amount of each pesticide standards (accurate to 0.1mg), were prepared with acetone to a concentration of 100μg/mL ~ 1000μg/mL standard stock solution of below 5 ℃ stored. 3.10 mixed standard working solution. Dilute into a series of mixed standard working solution of appropriate concentration needed with acetone. The organic phase was 3.11 membrane. 0.2μm.

4 instruments and equipment

4.1 Gas chromatograph. equipped with a flame photometric detector (FPD). 4.2 Gas chromatography - mass spectrometry. with a mass selective detector (MSD). 4.3 centrifuge. 4.4 Vortex. 4.5 rotary evaporator. 4.6 blowing nitrogen concentration device. 4.7 concentrated bottle. 150mL. ......

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