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SN/T 2432-2010: Determination of pyridaben residues in food for import and export
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Determination of pyridaben residues in food for import and export
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SN/T 2432-2010
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Basic data | Standard ID | SN/T 2432-2010 (SN/T2432-2010) | | Description (Translated English) | Determination of pyridaben 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 | 23,298 | | 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 Pyridaben 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 Pyridaben residues detected. | SN/T 2432-2010: Determination of pyridaben 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 pyridaben residues in food for import and export
Exit inspection and quarantine industry standard book People's Republic of China
Detection pyridaben residues in imported and exported food da
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. Xue Ping, Du Lijun, Chen Yong, Zhang Xiaofeng, Panya Li, Yuan Li.
Detection pyridaben residues in imported and exported food da
1 Scope
This standard specifies the imported and exported food clatter gas chromatography and gas chromatography mites Residues - Mass validated method.
This standard applies to asparagus, potatoes, onions, pears, peaches, corn, buckwheat, tea, vinegar, honey, walnuts, rabbit, chicken, shrimp, chicken in
Pyridaben 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 pyridaben standard substance. (pyridaben; CAS Number. 96489-71-3; C19H25ClN2OS; molecular weight. 364.93) Pure
Of greater than or equal to 99%.
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, washed with 2mL hexane - acetone mixed solution (3.9), 2mL propionate
Ketones, 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.
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