SN/T 1739-2006 English PDF

US$769.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 1739-2006: Determination of organophosphrous pesticides residues in cereals and oil seeds for import and export. Gas chromatography mass spectrometry method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 1739-2006	769	Add to Cart	5 days	Determination of organophosphrous pesticides residues in cereals and oil seeds for import and export. Gas chromatography mass spectrometry method	Valid

Similar standards

NY/T 1427   NY/T 1860.16   NY/T 1154.7   SN/T 2955   

Basic data

Standard ID: SN/T 1739-2006 (SN/T1739-2006)
Description (Translated English): Determination of organophosphrous pesticides residues in cereals and oil seeds for import and export. Gas chromatography mass spectrometry method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: B17
Classification of International Standard: 65.100
Word Count Estimation: 24,221
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 of grains and oilseeds in the 55 kinds of organophosphorus pesticide residues by gas chromatography mass spectrometry. This standard applies to import rice, corn, soybeans, peanuts in the 55 kinds of organophosphorus pesticide residues and confirmation.

SN/T 1739-2006: Determination of organophosphrous pesticides residues in cereals and oil seeds for import and export. Gas chromatography 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.
Determination of organophosphrous pesticides residues in cereals and oil seeds for import and export. Gas chromatography mass spectrometry method Book of the People's Republic of China Entry and Exit Inspection and Quarantine Import and export of various organophosphorus pesticide residues in grain and oilseeds Gas chromatographic 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 of this standard is a normative appendix, and Appendix B and Appendix C are informative appendices. 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. Yan Jun, Wang Mingtai, Zou Mingqiang, Wu Jian, Zhao Qingsong, Ma Shumin, Lu Chunmei. This standard is the first industry standard for entry-exit inspection and quarantine. Import and export of various organophosphorus pesticide residues in grain and oilseeds Gas chromatographic tandem mass spectrometry

1 Scope

This standard specifies the gas chromatography-mass spectrometry method for the determination of 55 organophosphorus pesticide residues in grain and oilseeds. This standard is applicable to the determination and confirmation of 55 organophosphorus pesticide residues in imported and exported brown rice, corn, soybean and peanut kernels.

2 Principle

The sample is extracted with water-acetone homogenization or methanol solvent extraction, and the liquid-liquid distribution in methylene chloride is used to purify the gel column. Purified by activated carbon solid phase column, the eluent is concentrated and dissolved to a constant volume, and then determined 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. Residual grade. 3.2 Dichloromethane. Residual grade. 3.3 Cyclohexane. Residual grade. 3.4 Ethyl acetate. Residual grade. 3.5 n-hexane. residual grade. 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 55 organophosphorus pesticide standards. purity ≥ 95%. 3.11 Standard stock solution. accurately weigh the appropriate amount of each pesticide standard (see Appendix A), and prepare the concentration with acetone. A standard stock solution of 100 μg/mL to 1000 μg/mL. 3.12 Mixed standard working solution. Dilute the mixture into a series of mixed standard working solutions of suitable concentration according to the need.

4 Instruments and equipment

4.1 Sample preparation tools 4.1.1 Grinder. 4.1.2 Crusher. 4.1.3 Sieve. 2.0mm round sieve. 4.1.4 Sample plate. 4.1.5 Sample bottle. with a jar. 4.2 Analytical instruments 4.2.1 Gas Chromatography-Mass Spectrometry (GC-MSD). equipped with a mass selective detector. 4.2.2 Gel Chromatograph (GPC). equipped with a unit pump and fraction collector. 4.2.3 Rapid Solvent Extractor (ASE). equipped with sample cell and receiving bottle. 4.2.4 Homogenizer. 8000r/min~24000r/min. ......

Image