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Determination of defoliant residues in cotton textile materials for import and export - LC-MS/MS method
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Basic data
| Standard ID | SN/T 4740-2016 (SN/T4740-2016) |
| Description (Translated English) | Determination of defoliant residues in cotton textile materials for import and export - LC-MS/MS method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | W04 |
| Word Count Estimation | 10,157 |
| Date of Issue | 2016-12-12 |
| Date of Implementation | 2017-07-01 |
| Regulation (derived from) | State-Quality-Inspection-Accredidation (2016) No.590 |
| Issuing agency(ies) | General Administration of Customs |
SN/T 4740-2016: Determination of defoliant residues in cotton textile materials for import and export - LC-MS/MS method
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Determination of defoliant residues in cotton textile materials for import and export-LC-MS/MS method
People's Republic of China Exit Inspection and Quarantine standards
Import and export of cotton textile raw materials
Determination of defoliant pesticide residues
Liquid chromatography - mass spectrometry/mass spectrometry
LC-MS/MS method
2016-12-12 released
2017-07-01 implementation
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted by the People's Republic of China Henan Exit Inspection and Quarantine.
The main drafters of this standard. Sun Wuyong, Guo Hui Qing, Qiao Qing, Yu Jian Ying, Zhang Shoujie, Zhang Shuxia, Xu Ming Man.
Import and export of cotton textile raw materials
Determination of defoliant pesticide residues
Liquid chromatography - mass spectrometry/mass spectrometry
1 Scope
This standard specifies the import and export of cotton textile raw materials thidiazuron, diuron, cyclopropane amide pesticide residues by liquid chromatography - mass spectrometry/mass spectrometry
test methods.
This standard applies to the import and export of cotton textile raw materials thiophene, diuron, cyclopropane acid amide pesticide residues in the determination.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 analytical laboratory water specifications and test methods
3 principle
The sample was extracted with acetonitrile, evaporated on a rotary evaporator and then dissolved in 10% acetonitrile in water. Liquid chromatography-mass spectrometry/mass spectrometry
Determination and confirmation, external standard method.
4 Reagents and materials
Unless otherwise specified, the reagents used are of analytical grade, water is a water GB/T 6682 provisions.
4.1 Acetonitrile. Chromatographic purity.
4.2 thidiazuron, diuron, cyclopropane amide standard purity greater than 98.0%.
4.3 standard stock solution Accurately weigh the appropriate standard, with acetonitrile (4.1) formulated into a concentration of 100μg/mL standard stock solution in
4 ℃, valid for 6 months.
4.4 mixed standard intermediate solution Take the above standard stock solution amount (4.3) prepared with acetonitrile to a concentration of 1μg/mL standard intermediate mixing
Solution, stored at 4 ℃, valid for 3 months.
4.5 standard working solution. Draw the right amount of mixed standard intermediate solution (4.4), with acetonitrile - water (7. 3, volume ratio) solution was formulated into different concentrations
Series of standard working solution, is now available with.
4.6 0.22μm filter, organic phase type.
5 instruments and equipment
5.1 Liquid Chromatography - Mass Spectrometry/Mass Spectrometer with Electrospray Ionization Source (ESI).
5.2 Centrifuge. The maximum speed of not less than 4000r/min.
5.3 Vortex shaker.
...
