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Determination of mesotrione residues in food for export - LC-MS/MS method
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SN/T 4045-2014
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Basic data Standard ID | SN/T 4045-2014 (SN/T4045-2014) | Description (Translated English) | Determination of mesotrione residues in food for 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 | 24,261 | Date of Issue | 12/1/2014 | Date of Implementation | 5/1/2015 | Quoted Standard | GB/T 6682 | Regulation (derived from) | State-Quality-Inspection-accreditation [2014] 614 | Issuing agency(ies) | General Administration of Customs | Summary | This standard provides the food for export mesotrione residues in liquid chromatography - mass spectrometry/mass spectrometry and confirmation methods. This standard applies to corn, brown rice, apples, citrus, sugar cane, spinach, chicken, beef, chicken |
SN/T 4045-2014: Determination of mesotrione residues in food for 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.
(Food for export mesotrione residues measured by liquid chromatography - mass spectrometry/mass spectrometry)
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Determination of food for export mesotrione residues
Liquid chromatography - mass spectrometry/mass spectrometry
LC-MS/MSmethod
Issued on. 2014-11-19
2015-05-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some of the content of this document may involve patents. Distribution of this document
Institutions do not assume the responsibility to identify these patents.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. Jilin People's Republic of China Exit Inspection and Quarantine.
The main drafters of this standard. Li Aijun, Mou Jun, Hu Tingting, Wang Mingtai, Lu Lijun, Zhou, Han Dachuan, Kangming Qin.
Determination of food for export mesotrione residues
Liquid chromatography - mass spectrometry/mass spectrometry
1 Scope
This standard provides the food for export mesotrione residues in liquid chromatography - mass spectrometry/mass spectrometry and confirmation methods.
This standard applies to corn, brown rice, apples, citrus, sugar cane, spinach, chicken, beef, chicken kidney, egg mesotrione residues Determination
And confirmation.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Laboratory use specifications and test methods GB/T 6682 Analysis
3 Method summary
Extracting a sample of mesotrione residue with acetonitrile, after gel chromatography and GCB SPE purification for liquid chromatography -
MS/MS assay and confirmed, external standard.
4 Reagents and materials
Unless otherwise specified, the reagents were of analytical grade water as a water GB/T 6682 regulations.
4.1 acetonitrile. pesticide residue levels.
4.2 Cyclohexane. pesticide residue levels.
4.3 Methanol. Pesticide residue levels.
4.4 ethyl acetate. pesticide residue levels.
4.5 sodium chloride.
4.6 sodium hydroxide.
4.7 Sodium hydroxide solution (1.0mol/L). Weigh 4.0g of sodium hydroxide dissolved in water and dilute to 100mL.
4.8 cyclohexane - ethyl acetate solution (11 volume). amount of 500mL and 500mL cyclohexane, ethyl acetate, and mix.
4.9 methanol - water (19 volume). the amount of 10mL of methanol and 90mL of water, and mix.
4.10 mesotrione standards (Mesotrione, CAS number. 104206-82-8, molecular formula. C14H13NO7S). purity of greater than or equal to
98.0%.
4.11 mesotrione standard stock solution. accurately weighed amount mesotrione standards, prepared in methanol at a concentration of 100μg/mL standard
Quasi stock solution. The solution was stored at 0 ℃ ~ 4 ℃ refrigerator.
4.12 mesotrione standard solution. as needed mesotrione standard stock solution was diluted to a suitable concentration of standard working with methanol
Solution. The solution was stored at 0 ℃ ~ 4 ℃ refrigerator.
4.13 organic microporous membrane. 0.22μm, 0.45μm.
4.14 GCB SPE. ENVI-Carb, 250mg/6mL, or equivalent person.
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