SN/T 4850-2017 English PDF

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SN/T 4850-2017: Determination of glufosinate-ammonium and metabolites residues in export food. Liquid chromatography-tandem mass spectrometry method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4850-2017	529	Add to Cart	5 days	Determination of glufosinate-ammonium and metabolites residues in export food. Liquid chromatography-tandem mass spectrometry method	Valid

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Basic data

Standard ID: SN/T 4850-2017 (SN/T4850-2017)
Description (Translated English): Determination of glufosinate-ammonium and metabolites residues in export food. Liquid chromatography-tandem mass spectrometry method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Word Count Estimation: 23,279
Date of Issue: 2017-07-21
Date of Implementation: 2018-03-01
Quoted Standard: GB/T 6682
Regulation (derived from): State-Quality-Inspection-Accreditation (2017) 337
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the liquid chromatography-mass spectrometry/mass spectrometry method for the determination of glufosinate and its metabolites N-acetyl glufosinate and 3-(methylphosphino)propionic acid in exported foods. This standard applies to tea, rice, soybean, corn, citrus, apple, peach, grape, banana, papaya, tomato, carrot, potato, onion, pistachio, rapeseed oil glufosinate and its metabolite N-acetyl Determination and confirmation of glufosinate, 3-(methylphosphino)propionic acid residues.

SN/T 4850-2017: Determination of glufosinate-ammonium and metabolites residues in export food. Liquid chromatography-tandem mass spectrometry 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.
Determination of glufosinate-ammonium and metabolites residues in export food.Liquid chromatography-tandem mass spectrometry method People's Republic of China entry and exit inspection and quarantine industry standards Determination of glufosinate and its metabolites in exported foods Liquid chromatography-mass spectrometry/mass spectrometry Released on.2017-07-21 2018-03-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. Publication of this document The organization does not assume responsibility for identifying these patents. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Comprehensive Technical Service Center of Quanzhou Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Fujian, People's Republic of China Entry-Exit Inspection and Quarantine Bureau, Jiangxi Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Fujian Gaojianfa Tea Co., Ltd., Luojiang, Quanzhou Quanyan Tea Industry Co., Ltd., Fujian Agriculture and Forestry University. The main drafters of the wood standard. Huang Bangshui, Wei Hang, Weng Chengwu, Zou Qiang, Lin Yonghui, Liu Zhengcai, Lin Chunxi, Rong Jiefeng, Li Yijun, Sun Weijiang, Yang Fang. Determination of glufosinate and its metabolites in exported foods Liquid chromatography-mass spectrometry/mass spectrometry

1 Scope

This standard specifies the liquid color of glufosinate and its metabolites N-acetyl glufosinate and 3-(methylphosphino)propionic acid residues in exported foods. Spectral-mass spectrometry/mass spectrometry detection methods. This standard applies to tea, rice, soybeans, corn, citrus, apple, peach, grape, banana, papaya, tomato, carrot, potato, onion, Detection and confirmation of glufosinate and its metabolites N-acetyl glufosinate and 3-(methylphosphino)propionic acid residues in pistachio and rapeseed oil.

2 Normative references

The following documents are indispensable for the application of this document. 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 glufosinate and its metabolites N-acetyl glufosinate and 3-(methylphosphino)propionic acid in the sample were extracted with water, and the solid phase was separated by dichloromethane and C18. The extraction cartridge was purified by liquid chromatography-mass spectrometry/mass spectrometry, electrospray ionization ionization (ESI-), and matrix external standard method.

4 reagents and materials

All reagents were of analytical grade and water was secondary ultrapure water unless otherwise stated. 4.1 Acetonitrile. Chromatographically pure. 4.2 anhydrous ammonium acetate. chromatographically pure. 4.3 Ammonia. 25%, chromatographically pure. 4.4 Dichloromethane, chromatographically pure. 4.5 Ammonium acetate aqueous solution (1mmol/L, pH = 11). Accurately weigh 0.07708g of anhydrous ammonium acetate dissolved in an appropriate amount of water, with ammonia Adjust pH = 11 and dilute to 1000 mL with water. 4.6 glufosinateammonium, GLU, CAS No.. 77182-82-2, molecular formula; C5H15N2O4P. purity ≥97.5%. 4.7 N-Acetyl glufosinate standard material (N-Acetyl-glufosinate, NAG, CAS number. 73634-73-8, molecular formula. C7H14NO5P). pure Degree ≥ 98.5%. 4.8 3-(methylphosphino)propionic acid standard (3-methylphosphinicopropionic acid, MPP, CAS No.. 15090-23-0, molecule Formula. C4H9O4P). purity ≥ 98.0%. 4.9 glufosinate, N-acetyl glufosinate (NAG), 3-(methylphosphino)propionic acid (MPP) standard stock solution (1.0mg/mL). accurate Take 50mg of glufosinate and NAG, MPP standard, dissolve in water and dilute to 50mL, and store in polyethylene or polypropylene plastic bottle. Store below 5 °C. 4.10 glufosinate, N-acetyl glufosinate (NAG), 3-(methylphosphino)propionic acid (MPP) standard intermediate solution (1.0μg/mL). take certain ......

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