SN/T 2540-2010 English PDF

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SN/T 2540-2010: Determination of benzoylurea pesticides residues in foodstuffs for import and export. LC-MS/MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2540-2010	679	Add to Cart	5 days	Determination of benzoylurea pesticides residues in foodstuffs for import and export. LC-MS/MS method	Valid

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Basic data

Standard ID: SN/T 2540-2010 (SN/T2540-2010)
Description (Translated English): Determination of benzoylurea pesticides residues in foodstuffs for import and export. LC-MS/MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 26,258
Date of Issue: 2010-03-02
Date of Implementation: 2010-09-16
Regulation (derived from): National Quality Inspection 2010) 98
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the foods Chlorfluazuron, killing bell, diflubenzuron, teflubenzuron, Flufenoxuron, hexaflumuron, fluorine diflubenzuron, lufenuron, fluorine Ureides, ticks urea residue detection system sample and liquid chromatography mass spectrometry/mass spectrometry. This standard applies to rice, wheat, citrus, spinach, walnuts, tea, pork, liver and milk Chlorfluazuron, killing bell, diflubenzuron, teflubenzuron, Flufenoxuron, hexaflumuron, fluorine Young urea, lufenuron, fluorine Ureides, ticks urea residues quantitative determination and confirmation.

SN/T 2540-2010: Determination of benzoylurea pesticides residues in foodstuffs for import and export. LC-MS/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 benzoylurea pesticides residues in foodstuffs for import and export.LC-MS/MS method Exit inspection and quarantine industry standard book People's Republic of China Benzoyl urea imported and exported food Determination of pesticide residues Liquid chromatography - mass spectrometry/mass spectrometry Issued on. 2010-03-02 2010-09-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

The Standard Appendix A, Appendix B and Appendix C are informative appendices. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard by the People's Republic of China Hunan Exit Inspection and Quarantine, Shenzhen People's Republic of China Entry-Exit Inspection and Quarantine Bureau Drafted. The main drafters. Zhang Ying, Mei-ling, to Xiao Long, Huang Ping, Weidong, Chen Kun, Zhu Shaohua, Dingley, Huang Zhiqiang. Benzoyl urea imported and exported food Determination of pesticide residues Liquid chromatography - mass spectrometry/mass spectrometry

1 Scope

This standard specifies the foods chlorfluazuron, triflumuron, diflubenzuron, teflubenzuron, flufenoxuron, hexaflumuron, fluoro diflubenzuron, lufenuron, novaluron, pyridine Sample preparation and liquid chromatography ticks urea Residues - Mass/mass spectrometry. This standard applies to rice, wheat, citrus, spinach, walnuts, tea, pork, liver and milk chlorfluazuron, triflumuron, diflubenzuron, V Long worm, flufenoxuron, hexaflumuron, fluoro diflubenzuron, lufenuron, novaluron, pyridine ticks remaining amount of urea quantitative determination and confirmation.

2 Method summary

Pesticide residues in samples with acetone - hexane extract, the extract was GCB small or neutral alumina column, purified by liquid Chromatography - mass spectrometry/mass spectrometry detection and confirmation, external standard.

3 Reagents and materials

Except where noted, all reagents were of analytical grade water as a water line with GB/T 6682 regulations. 3.1 acetonitrile. HPLC grade. 3.2 Methanol. HPLC grade. 3.3 acetone. 3.4 n-hexane. 3.5 acetic acid. 3.6 sodium chloride. 3.7 anhydrous sodium sulfate. After burning 650 ℃ 4h, the dryer use. 3.8 acetone - n-hexane (1 + 1, volume ratio). Take 100mL acetone, n-hexane was added 100mL shake up. 3.9 Methanol - water (1 + 1, volume ratio). Measure 100mL methanol, 100mL water was added, mixing spare. 3.10 chlorfluazuron, triflumuron, diflubenzuron, teflubenzuron, flufenoxuron, hexaflumuron, fluoro diflubenzuron, lufenuron, novaluron, pyridine ticks urea Standard substance. purity Greater than or equal to 98%, see Appendix A. 3.11 Standard stock solution. namely, accurately weighed amount of the above standards, prepared in methanol stock standard solution 1.0mg/mL, and at 4 ℃ save. 3.12 mixed formulation intermediate standard solution. take the right amount of stock solution of the above criteria, diluted with methanol formulated as 10.0μg/mL standard mixed solution Liquid, at 4 ℃. Preparation of standard solution of 3.13. draw an appropriate amount of mixed standard intermediate solution, with a blank sample matrix formulated in an appropriate concentration of the standard work Solution, preparation before use. 3.14 GCB cartridges. 250mg, 3mL or equivalent person. 3.15 neutral alumina column. 500mg, 3mL or equivalent person. 3.16 microporous membrane. 0.45μm, the organic phase type.

4 instruments and equipment

4.1 High performance liquid chromatography - mass spectrometry/mass spectrometry. Spray anion source distribution (ESI-). ......

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