SN/T 1741-2006 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 1741-2006	639	Add to Cart	5 days	Detection of alachlor residues in food import and export gas chromatography tandem mass spectrometry method	Obsolete

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Basic data

Standard ID: SN/T 1741-2006 (SN/T1741-2006)
Description (Translated English): Detection of alachlor residues in food import and export gas chromatography tandem mass spectrometry method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: B17
Classification of International Standard: 65.100
Word Count Estimation: 16,118
Date of Issue: 2006-01-26
Date of Implementation: 2006-08-16
Regulation (derived from): Industry Standard Notice 2006 No. 4 (total of 76)
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the import and export food alachlor residues by gas chromatography mass spectrometry detection method. This standard applies to import corn, peanuts, oranges, spinach alachlor residues and confirmation.

SN/T 1741-2006: Detection of alachlor residues in food import and export gas chromatography tandem mass spectrometry 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.
Detection of alachlor residues in food import and export gas chromatography tandem mass spectrometry method People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard Method for detecting alachlor residue in imported and exported foods Gas chromatography tandem mass spectrometry Released on.2006-01-26 Implementation of.2006-08-16 People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

Appendix A and Appendix B of this standard are informative annexes. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Jilin Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Wang Mingtai, Yan Jun, Wu Jian, Dong Ao, Shen Shihua, Liu Yongxian. This standard is the first industry standard for entry-exit inspection and quarantine. Method for detecting alachlor residue in imported and exported foods Gas chromatography tandem mass spectrometry

1 Scope

This standard specifies the method for the determination of alachlor residues in imported and exported foods by gas chromatography-mass spectrometry. This standard applies to the determination and confirmation of alachlor residues in corn, peanut, citrus and spinach.

2 Principle

The sample is extracted by water-acetone homogenization, liquid-liquid partitioning in dichloromethane, purification by gel column, purification by activated carbon solid phase column, elution After the liquid is concentrated and dissolved to a constant volume, it is detected by gas chromatography-mass spectrometry and quantified by external standard method.

3 reagents and materials

Unless otherwise specified, the reagents used were of analytical grade and the water was double distilled water. 3.1 Acetone. 3.2 Dichloromethane. 3.3 cyclohexane. 3.4 Ethyl acetate. 3.5 n-hexane. 3.6 Sodium chloride. 3.7 anhydrous sodium sulfate. 650 ° C burning for 4h, stored in a sealed container for use. 3.8 Sodium chloride aqueous solution. 20g/L. 3.9 Activated carbon solid phase extraction column. 0.25g, ENVI-Carb, or equivalent. 3.10 Alachlor standard (Alachlor, C14H20CINO2, CASN o. 15972-60-8). purity > 99%. 3.11 Standard stock solution. Accurately weigh the appropriate amount of alachlor standard and prepare a standard reserve of 100μg/mL with acetone. Solution. 3.12 Standard working solution. Dilute to a standard working solution of the appropriate concentration with n-hexane as needed.

4 Instruments and equipment

4.1 Sample preparation tools 4.1.1 Grinder. 4.1.2 Crusher. 4.1.3 Crusher. 4.1.4 sieve. 2.0mm round sieve. 4.1.5 Sample plate. 4.1.6 Sample bottle. 500mL, with a wide-mouth bottle. 4.2 Analytical instruments 4.2.1 Gas Chromatography-Mass Spectrometer. equipped with a mass selective detector. 4.2.2 Gel Chromatograph. equipped with a unit pump and fraction collector. 4.2.3 Homogenizer. ......

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