SN/T 2228-2008 English PDF

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SN/T 2228-2008: Determination of 31 acid pesticide residues in foods for import and export. GC-MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2228-2008	729	Add to Cart	5 days	Determination of 31 acid pesticide residues in foods for import and export. GC-MS method	Valid

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Basic data

Standard ID: SN/T 2228-2008 (SN/T2228-2008)
Description (Translated English): Determination of 31 acid pesticide residues in foods for import and export. GC-MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Word Count Estimation: 28,269
Date of Issue: 2008-11-18
Date of Implementation: 2009-06-01
Regulation (derived from): National Quality Inspection [2008] No. 577
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the food, 31 acidic herbicide residues by gas chromatography mass spectrometry. This standard applies to rice, brown rice, barley, wheat and corn dichloro-picoline acid, p-chlorophenoxy acetic acid 2 phenylphenol, dicamba, MCPA, 2, 4 drop acid, bromine benzonitrile, 2, 4 drops, Triclopyr, one NAA/NAA, 5 chloro phenol, 2, 4, 5 Dichlorprop grass off the flat, 2 A 4 neoprene acid, 2, 4 5 tears, fluroxypyr, 2, 4 drop acid, bentazon, ioxynil, picloram, quinclorac, fluazifop, Haloxyfop, straw fluorine, trifluoromethyl carboxymethyl ether grass, salicylic bacteria amine, ethyl sulfide grass, ring amine acid bacteria, chloroformylphenoxy alachlor, quizalofop, Bispyribac other 31 kinds of acidic herbicide residues.

SN/T 2228-2008: Determination of 31 acid pesticide residues in foods for import and export. GC-MS 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 31 acid pesticide residues in foods for import and export.GC-MS method Exit inspection and quarantine industry standard book People's Republic of China Import and export food 31 acidic herbicide Detection of Residual Gas chromatography - mass spectrometry Posted 2008-11-18 2009-06-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

The Standard Appendix A and Appendix B are informative. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Hunan Exit Inspection and Quarantine. The main drafters of this standard. Yanhong Fei, Zhang Ying, Huang Zhiqiang, Huang Ping, Li Yongjun, Wang Meiling. This standard is the first release of the entry-exit inspection and quarantine industry standards. Import and export food 31 acidic herbicide Detection of Residual Gas chromatography - mass spectrometry

1 Scope

This standard specifies the food 31 herbicides in gas chromatography - mass spectrometry. This standard applies to rice, brown rice, barley, wheat and corn-dichloro-picolinic acid, p-dichlorobenzene oxygen acetic acid, 2-phenylphenol, dicamba, MCPA, dichlorprop, bromoxynil, 2,4-D, triclopyr acid, 1-naphthaleneacetic acid/NAA, 5- chlorophenol, 2,4,5 drops of propionic acid, off the grass Flat, 2 MCPB, 2,4,5-T, fluroxypyr, 2,4-D acid, bentazone, ioxynil, picloram, quinclorac, fluazifop , topiramate Haloxyfop, straw fluorine, acifluorfen, salicyl bacteria amines, ethyl sulfide grass, fenhexamid, malonyl chloride alachlor, quizalofop, bispyribac and other 31 kinds of acid Determination of herbicide residues.

2 Method summary

Pyruvic acid aqueous solution sample was extracted after waving to extract acetone, ethyl acetate liquid partitioning, gel permeation chromatography (GPC) After purification, with Trimethylsilyldiazomethane derivatized, derivatized product over florisil SPE column is further purified by gas chromatography Spectrum - mass spectrometry (GC-MS) in selected ion monitoring mode (SIM) measurement, external standard.

3 Reagents and materials

Unless otherwise specified, all reagents were of analytical grade, double distilled water. 3.1 acetone. pure class distinctions. 3.2 hexane. pure class distinctions. 3.3 Cyclohexane. chromatography. 3.4 Methanol. chromatographically pure. 3.5 Benzene. chromatography. 3.6 ethyl acetate. chromatography. 3.7 sodium chloride. 3.8 sodium chloride solution (15%). weigh 150g sodium chloride (3.7) is dissolved in water, dilute to 1000mL. 3.9 Concentrated hydrochloric acid. pure class distinctions. 3.10 hydrochloric acid solution (0.1mol/L). accurate Pipette 9mL (3.9) is dissolved in water, dilute to 1000mL. 3.11 hydrochloric acid solution (4.0mol/L). accurate Pipette 360mL (3.9) is dissolved in water, dilute to 1000mL. 3.12 Trimethylsilyldiazomethane n-hexane solution (2.0mol/L). Acetone 3.13 - cyclohexane extracts (2 + 8, by volume). exact Pipette 20mL acetone (3.1), and 80mL of cyclohexane (3.3) Mixed Uniform. 3.14 acetone - n-hexane extracts (2 + 8 volume ratio). accurate Pipette 20mL acetone (3.1) and 80mL hexane (3.2) Mixed Uniform. 3.15 methanol - benzene extract (2 + 8, by volume). exact Pipette 20mL methanol (3.4), and 80mL benzene (3.5) were mixed uniformly. 3.16 The pesticide standards. dichloro-picolinic acid, p-dichlorobenzene oxygen acetic acid, 2-phenylphenol, dicamba, MCPA, dichlorprop, bromoxynil, 2,4-D, triclopyr acid, 1-naphthaleneacetic acid/NAA, 5- chlorophenol, 2,4,5 drop acid, off the grass flat, 2 MCPB, 2,4,5 tears, fluroxypyr Smoke, 2,4-D acid, bentazone, ioxynil, picloram, quinclorac, fluazifop, haloxyfop, straw fluorine, acifluorfen, water ......

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