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Determination of tebuonazoe residues in cereals for import and export. GC-MS method
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SN/T 1952-2007
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Basic data | Standard ID | SN/T 1952-2007 (SN/T1952-2007) | | Description (Translated English) | Determination of tebuonazoe residues in cereals for import and export. GC-MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.050 | | Word Count Estimation | 14,182 | | Date of Issue | 2007-08-06 | | Date of Implementation | 2008-03-01 | | Regulation (derived from) | National-accreditation-Science [2011] 63 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the Grains tebuconazole residues by gas chromatography mass spectrometry. This standard applies to corn, wheat tebuconazole residues detection and confirmation. | SN/T 1952-2007: Determination of tebuonazoe residues in cereals for import and export. GC-MS method
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Determination of tebuonazoe residues in cereals for import and export.GC-MS method
Exit inspection and quarantine industry standard book People's Republic of China
Importers in Grains tebuconazole detection of alcohol residues
Gas chromatography - mass spectrometry
Posted 2007-08-06
2008-03-01 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. People's Republic of China Shandong CIQ.
The main drafters of this standard. Li Li, Sui Tao, Li Zheng, Yin road, Cao Peng.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Importers in Grains tebuconazole detection of alcohol residues
Gas chromatography - mass spectrometry
1 Scope
This standard specifies the cereal grains in tebuconazole residues by gas chromatography - mass spectrometry method.
This standard applies to corn, wheat tebuconazole residues in the detection and confirmation.
2 Method summary
Sample extracted with ethyl acetate, carbon graphite/amino mixed solid phase extraction (SPE) and gas chromatography - mass spectrometry, external standard.
3 Reagents and materials
Unless otherwise specified, reagents were HPLC grade water for ultra-pure water.
3.1 ethyl acetate. pure class distinctions.
3.2 hexane. pure class distinctions.
3.3 acetonitrile. pure class distinctions.
3.4 Toluene. pure class distinctions.
3.5 acetone. pure class distinctions.
3.6 anhydrous sodium sulfate. AR, 650 ℃ burning 4h, cooled in a sealed bottle storage spare.
3.7 tebuconazole standards. Tebuconazole, C16H22ClN3, CASN O. 107534-96-3, purity. 98% or greater.
3.8 tebuconazole standard stock solution. weigh the amount of tebuconazole standards, with n-hexane formulated into standard stock solution 1.0mg/mL of, 0 ℃ ~
4 ℃.
3.9 tebuconazole standard solution. if necessary, diluted with n-hexane stock solution to the appropriate concentration of the standard working solution, 0 ℃ ~ 4 ℃
save.
3.10 Envi-Carb/LC-NH2 solid phase extraction column. 500mg/250mg, or equivalent.
4 instruments and equipment
4.1 Gas chromatography - mass spectrometry. equipped with electron impact ionization (EI source).
Cereals 4.2 mill.
4.3 rotary evaporator.
4.4 high-speed homogenizer.20000r/min.
4.5 tube. 100mL.
4.6 filter. 0.45μm.
5 Sample preparation and preservation
Take a representative sample of about 500g, pulverized using a mill open all through the 2.0mm round hole screen. Mix, loaded into a clean container, dense
Closed and labeled. 0 ℃ ~ 4 ℃ preservation. In the sampling and sample preparation process, should take place to prevent sample contamination and residual content
Variety.
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