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SN/T 2540-2010: Determination of benzoylurea pesticides residues in foodstuffs for import and export. LC-MS/MS method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2540-2010 | English | 679 |
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Determination of benzoylurea pesticides residues in foodstuffs for import and export. LC-MS/MS method
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SN/T 2540-2010
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PDF similar to SN/T 2540-2010
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
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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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