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| SN/T 2213-2008 | English | 839 |
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Determination of substituted ureas pesticides residues in foodstuffs of plant origin for import and export. LC-MS/MS method
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SN/T 2213-2008
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PDF similar to SN/T 2213-2008
Basic data | Standard ID | SN/T 2213-2008 (SN/T2213-2008) | | Description (Translated English) | Determination of substituted ureas pesticides residues in foodstuffs of plant origin for import and export. LC-MS/MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X04 | | Word Count Estimation | 21,293 | | 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 corn, soybeans, oranges, rice and cabbage Africa Long grass, methoxy Long, monuron, Chlortoluron, methyl benzene, thiophene Lung, fluometuron, diuron, ring Hidetaka, isopropyl Long, Yi Cao End Long, Long grass ring, alkyne Long grass, linuron, dry hay Long atrazine residues long and liquid chromatography mass spectrometry/mass spectrometry. This standard applies to corn, soybeans, oranges, rice and cabbage Africa Long grass, methoxy Long, monuron, Chlortoluron, methyl benzene, thiophene Lung, fluometuron, diuron, ring Hidetaka, isopropyl Long, Yi Cao End Long, Long grass ring, alkyne Long grass, linuron, dry hay atrazine Long Long residues and quantitative determination and confirmation. | SN/T 2213-2008: Determination of substituted ureas pesticides residues in foodstuffs of plant origin for import and export. LC-MS/MS method
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Determination of substituted ureas pesticides residues in foodstuffs of plant origin for import and export.LC-MS/MS method
Exit inspection and quarantine industry standard book People's Republic of China
Importers of plant-derived foods substituted ureas
Determination of pesticide residues
Liquid chromatography - mass spectrometry/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, Shenzhen CIQ.
The main drafters of this standard. Chen Jincan, Kang Haining, Xieli Qi, Zhang Jianying, Ye Gang.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Importers of plant-derived foods substituted ureas
Determination of pesticide residues
Liquid chromatography - mass spectrometry/mass spectrometry
1 Scope
This standard specifies the corn, soybeans, oranges, rice and cabbage Central Africa diuron, methoxy Long, Long herbicides, chlorotoluron, methyl benzene thiophene Long, V grass
Long, diuron, ring Hidetaka, isoproturon, Yi Cao End Long, Long grass ring, alkyne diuron, linuron, dry and B. Long Long atrazine residues in liquid chromatography - mass
Spectroscopy/mass spectrometry.
This standard applies to corn, soybeans, oranges, rice and cabbage Central Africa diuron, methoxy Long, Long herbicides, chlorotoluron, methyl benzene thiophene Long, V grass
Long, diuron, ring Hidetaka, isoproturon, Yi Cao End Long, Long grass ring, alkyne diuron, linuron, dry and B. Long Long atrazine residues confirmation and quantitation
Determination.
2 Method summary
The sample was extracted with acetonitrile residues substituted urea herbicides, extract by HLB solid phase extraction (SPE), liquid chromatography - mass spectrometry/mass
Spectroscopy detection and validation, external standard.
3 reagent material
Unless otherwise indicated, the reagents used were of analytical grade, water is deionized water.
3.1 Methanol. HPLC grade.
3.2 acetonitrile. high performance liquid chromatography.
3.3 sodium chloride.
3.4 acetic acid. high performance liquid chromatography.
3.5 0.1% acetic acid - solution. Imbibe 1mL acetic acid (3.4) in 1000mL volumetric flask, add water to the mark, mix
Uniform.
3.6 0.1% acetic acid - water + methanol (7 + 3, volume ratio). The exact amount of 70mL0.1% acetic acid - water (3.5) and 30mL A
Alcohol (3.1) and mix well.
3.7 Standard substance. non diuron (CasNo.101-42-8), methoxy-long (CasNo.19937-59-8), Monuron (CasNo.150-68-5),
Chlorotoluron (CasNo.15545-48-9), methyl benzene thiophene Long (CasNo.18691-97-9), fluometuron (CasNo.2164-17-2), diuron
(CasNo.330-54-1), ring Hidetaka (CasNo.2163-69-1), isoproturon (CasNo.34123-59-6), Yi Cao End Long (Cas
No. 28805-78-9), siduron (CasNo.1982-49-6), alkyne diuron (CasNo.3766-60-7), Linuron (CasNo.330-55-2),
Long dry herbicide (CasNo.14214-32-5) and B. Long (CasNo.1982-47-4), greater than 99% purity.
3.8 standard stock solution. Accurately weigh an appropriate amount of various substituted urea standard substance (3.7), preparation of a concentration with acetonitrile (3.2) as
100mg/L standard stock solution of below -18 ℃ from light, can be used for six months.
3.9 mixed intermediate standard solution. draw the appropriate amount of each standard stock solution (3.8), diluted with acetonitrile (3.2) to a mixed 1.0mg/L in
Room standard solution, 0 ℃ ~ 4 ℃ dark preservation, you can use a month.
3.10 matrix mixed standard working solution. draw an appropriate amount of a mixed intermediate standard solution (3.9), with a blank sample extract dubbed the concentration of
5.0μg/L, 10.0μg/L, 20.0μg/L, 50.0μg/L, 100.0μg/matrix of L mixed standard working solution. Day of preparation.
3.11 HLB solid phase extraction column or an equivalent person. 6mL, 200mg. 5mL acetonitrile activated before use, kept moist cylinder.
3.12 microporous membrane. 0.22μm, the organic phase type.
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