SN/T 2433-2010 English PDF

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SN/T 2433-2010	919	Add to Cart	4 days	Determination of clodinafop propargyl residues in food for import and export	Obsolete

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Basic data

Standard ID: SN/T 2433-2010 (SN/T2433-2010)
Description (Translated English): Determination of clodinafop propargyl residues in food for import and export
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 23,289
Date of Issue: 2010-01-10
Date of Implementation: 2010-07-16
Regulation (derived from): National Quality Inspection (2010) No. 13
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the import and export food propargyl ester grass residues detected by gas chromatography and gas chromatography mass spectrometry confirmatory method. This standard applies to asparagus, potatoes, onions, pears, peaches, corn, buckwheat, tea, vinegar, honey, walnuts, rabbit, chicken, shrimp, chicken propargyl ester residues detected grass.

SN/T 2433-2010: Determination of clodinafop propargyl residues in food 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 clodinafop propargyl residues in food for import and export Exit inspection and quarantine industry standard book People's Republic of China Import and export of food in the grass alkyne ester residues detection method Issued on. 2010-01-10 2010-07-16 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 was drafted. Shanxi People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. Du Lijun, Chen Yong, Wu Haijun, Zhang Xiaofeng, Zhang Jianjun, Zhang Min love. Import and export of food in the grass alkyne ester residues detection method

1 Scope

This standard specifies the gas chromatography and gas chromatography imported and exported food clodinafop-propargyl Residues - Mass validated method. This standard applies to asparagus, potatoes, onions, pears, peaches, corn, buckwheat, tea, vinegar, honey, walnuts, rabbit, chicken, shrimp, chicken in Clodinafop-propargyl residues detected.

2 Method summary

Vinegar and honey dissolved in water and diluted over the solid phase extraction (SPE); onions and tea with ethyl acetate - cyclohexane mixed solvent extraction, solid phase Extraction purification; animal-derived foods and foods high oil content extracted with acetonitrile, ethyl acetate and other food - a mixed cyclohexane solvent extraction, mention Were washed with gel chromatography (GPC), for gas chromatography with electron capture detector, external standard, positive samples using gas chromatography Spectrum - mass spectrometry confirmed.

3 Reagents and materials

Unless otherwise specified, the reagents were of analytical grade, double distilled water. 3.1 ethyl acetate. chromatography. 3.2 Cyclohexane. chromatography. 3.3 acetonitrile. chromatography. 3.4 hexane. chromatographically pure. 3.5 acetone. chromatography. 3.6 anhydrous sodium. 650 ℃ burning 4h, stored in a sealed container in the back. 3.7 sodium chloride. 3.8 ethyl acetate - cyclohexane solvent mixture (1 + 1, volume ratio). amount of 500mL ethyl acetate and 500mL of cyclohexane, and mix. 3.9 hexane - acetone mixed solvent (9 + 1, volume ratio). amount of 90mL and 10mL of n-hexane, acetone, and mix. 3.10 cyclohexane - ethyl acetate solvent mixture (6 + 1, by volume). the amount of 10mL ethyl acetate and 60mL of cyclohexane, and mix. 3.11 clodinafop-propargyl standard substance. (clodinafoppropargyl; CAS Number. 105512-06-9; Molecular formula. C17H13ClFNO4 opposite points Sub mass. 349.8) 98.5% or greater purity. 3.12 Standard stock solution (100mg/L). accurately weighed amount of reference material, dissolved in ethyl acetate to prepare a concentration of 100mg/L of Standard stock solution, the solution was stored at 0 ℃ ~ 4 ℃ refrigerator. 3.13 standard working solution. diluted with ethyl acetate needed to apply the standard working solution concentration. Standard working solution should now use the existing. 3.14 graphitized carbon black and PSA mixing column. 1mL, 50mg graphitized carbon black + 50mgPSA, with 3mL cyclohexane - ethyl acetate mixture Co-solvent (3.10) activation. 3.15 HLB solid phase extraction column. 3mL, 60mg, or rather who, with 2mL hexane - acetone mixed solution (3.9), 2mL acetone, 5mL distilled water pre-rinse. The organic phase was 3.16 membrane. 0.45μm.

4 instruments and equipment

4.1 Gas chromatograph equipped with electron capture detector. 4.2 Gas chromatography - mass spectrometer, equipped with an electronic bombardment source (EI). ......

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