SN/T 2322-2009 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2322-2009	839	Add to Cart	4 days	Determination of acetochlor residue in foods for import and export	Obsolete

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Basic data

Standard ID: SN/T 2322-2009 (SN/T2322-2009)
Description (Translated English): Determination of acetochlor residue in foods for import and export
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 21,236
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 acetochlor residues in foods by gas chromatography, gas chromatography mass spectrometry confirmed and sample preparation. This standard applies to peanuts, soybeans, corn, wheat, onions, seaweed, chicken, pork, cashew nuts and mushrooms acetochlor residues.

SN/T 2322-2009: Determination of acetochlor residue in foods for import and export

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Determination of acetochlor residue in foods for import and export Exit inspection and quarantine industry standard book People's Republic of China Residues in food import and export methods acetochlor 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 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 Liaoning Entry-Exit Inspection and Quarantine Zhejiang People's Republic of China, the Chinese people People's Republic of Shenzhen Entry-Exit Inspection and Quarantine Shandong People's Republic of China, People's Republic of China Heilongjiang access Habitat Inspection and Quarantine Bureau responsible for drafting and Yunnan People's Republic of China participated in the drafting Exit Inspection and Quarantine. The main drafters of this standard. Wei Feng, Dongzhen Lin, Zhou Xingwei, Yang Chunguang, Wang Yuping, Bao Xiaoxia, Blue Fang, Wang Jianhua, Yang Chang-chih, Pengyun Xia. This standard is the first release of the entry-exit inspection and quarantine industry standards. Residues in food import and export methods acetochlor

1 Scope

This standard specifies the gas chromatography, gas chromatography in food and acetochlor - Mass confirmed and sample preparation methods. This standard applies to peanuts, soybeans, corn, wheat, onions, seaweed, chicken, pork, cashew nuts and matsutake Acetochlor measured residues.

2 Method summary

Sample acetochlor residue with acetonitrile or ethyl acetate extract by gel permeation chromatography (GPC) and/or silica gel solid phase extraction column (SPE) purification, determined by gas chromatography (GC) and gas chromatography - mass spectrometry (GC-MS) confirmed, external standard.

3 Reagents and materials

Unless otherwise specified, the reagents were HPLC grade water re-distilled water. 3.1 n-hexane. 3.2 ethyl acetate. 3.3 cyclohexane. 3.4 acetonitrile. 3.5 acetone. 3.6 anhydrous sodium. AR; 650 ℃ burning 4h, stored in a sealed container in the back. 3.7 ethyl acetate - n-hexane. 3 + 97 (volume ratio). 3.8 ethyl acetate - n-hexane. 95 + 5 (volume ratio). 3.9 ethyl acetate - cyclohexane. 50 + 50 (volume ratio). 3.10 acetochlor standard (acetochlor, C14H20ClNO2, CASN o. 34256-82-1). purity greater than or equal to 98%. 3.11 acetochlor standard solution. Accurately weigh an adequate amount of acetochlor standard, dubbed the concentration using acetone as the standard stock solution 100μg/mL of. The required standard stock solution was diluted to the appropriate concentration of standard working solution with n-hexane. Stock standard solution and standard working solution in the dark Stored at 0 ℃ ~ 4 ℃ condition. Valid for six months.

4 instruments and equipment

4.1 Gas chromatograph. with micro electron capture detector (μ-ECD). 4.2 Gas chromatography - mass spectrometry. source with electron impact (EI). 4.3 gel permeation chromatography. 4.4 rotary evaporator. 4.5 Centrifuge. 5000r/min. 4.6 high-speed homogenizer 4.7 silica SPE. 6mL/1000mg, or equivalent person; 10mL hexane rinsed before use. 4.8 tube. 100mL, plastic and glass. 4.9 filter. 0.45μm, organic phase.

5 Sample Preparation and Storage

5.1 vegetables, edible fungi 5.1.1 Take onions and other spicy vegetable representative sample of about 500g, it is the edible part, which was cut into about 4cm2 pieces. Load Jie ......

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