SN/T 4891-2017 English PDF

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SN/T 4891-2017: Determination of Spirotetramat residue in foodstuffs for export. HPLC and LC-MS/MS method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4891-2017	719	Add to Cart	7 days	Determination of Spirotetramat residue in foodstuffs for export. HPLC and LC-MS/MS method	Valid

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Basic data

Standard ID: SN/T 4891-2017 (SN/T4891-2017)
Description (Translated English): Determination of Spirotetramat residue in foodstuffs for export. HPLC and LC-MS/MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Word Count Estimation: 31,374
Date of Issue: 2017-08-29
Date of Implementation: 2018-04-01
Quoted Standard: GB/T 6682
Regulation (derived from): State-Quality-Inspection-Accreditation (2017) 384
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the liquid chromatography-mass spectrometry/mass spectrometry method for the determination of spirotetraethyl ester and its metabolite residues in exported foods and the HPLC method for the determination of spirotetramat residues in exported foods. This standard liquid chromatography-mass spectrometry/mass spectrometry is applicable to the residues of spirotetramat and its metabolites in export foods such as pork, pig liver, pig fat, milk, eggs, honey, soybean, wheat, Chinese cabbage, lychee and raisins. Quantitative determination and confirmation; high performance liquid chromatography is suitable for the quantitative determination of spirotetraethyl ester residues in export foods such as soybean, wheat, Chinese cabbage, lychee and raisins.

SN/T 4891-2017: Determination of Spirotetramat residue in foodstuffs for export. HPLC and 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.
Determination of Spirotetramat residue in foodstuffs for export. HPLC and LC-MS/MS method People's Republic of China entry and exit inspection and quarantine industry standards Determination of spirotetraethyl ester residues in exported foods High performance liquid chromatography and liquid chromatography-mass spectrometry/mass spectrometry LC-MS/MSmethod Published on.2017-08-29 2018-04-01 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. Chongqing Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Wanzhou Exit and Entry Inspection of the People's Republic of China Epidemic situation. The main drafters of this standard. Tang Baibin, Xia Mingxing, Li Guangman, Qu Cunxian, Cao Shurui, Zheng Xiaoling, Zhang Lei, Li Xianliang, Wang Guomin. Determination of spirotetraethyl ester residues in exported foods High performance liquid chromatography and liquid chromatography-mass spectrometry/mass spectrometry

1 Scope

This standard specifies the liquid chromatography-mass spectrometry/mass spectrometry method for the determination of spirotetraethyl ester and its metabolite residues in exported foods and export foods. A method for the determination of ethyl snail residues in high performance liquid chromatography. This standard liquid chromatography-mass spectrometry/mass spectrometry is applicable to pork, pig liver, pig fat, milk, eggs, honey, soybean, wheat, Chinese cabbage, lychee. Quantitative determination and confirmation of spirotetraethyl ester and its metabolite residues in export foods such as raisins; high performance liquid chromatography for soybeans, small Quantitative determination of spirotetraethyl ester residues in exported foods such as wheat, Chinese cabbage, lychee and raisins.

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 First method liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS method)

3 method summary

The sample was extracted with acetonitrile, and the extract was concentrated and fixed to volume and extracted with n-hexane liquid. The liquid was determined by liquid chromatography-mass spectrometry/mass spectrometry. Method of quantification and confirmation.

4 reagents and materials

Unless otherwise specified, the reagents used were of analytical grade and the water was first grade water in accordance with GB/T 6682. 4.1 Acetonitrile. Chromatographically pure. 4.2 Hexane. Chromatographically pure. 4.3 Formic acid. chromatographically pure. 4.4 Ammonium acetate. chromatographically pure. 4.5 Anhydrous magnesium sulfate. analytically pure. 4.6 Anhydrous sodium acetate. analytically pure. 4.7 50% acetonitrile. acetonitrile-water (50 50, by volume). 4.8 2mmol/L ammonium acetate (containing 0.1% formic acid). Weigh 0.154g ammonium acetate (4.4), dissolve it with 950mL water, add 1.0mL A Acid (4.3), diluted to 1000 mL with water. 4.9 Standard. Spirotetramat and its four metabolites, all of which are more than 90% pure. See Appendix A, Table A.1 for details of the compound. 4.10 Mixed standard stock solution (100mg/L). accurately weigh the standard containing 5mg of spirotetramat and its metabolites, using acetonitrile (4.1) Dissolve and dilute to 50 mL and mix. Store below -18 °C in the dark. 4.11 Mixed standard intermediate solution (1.0μg/mL). Take appropriate amount of 100mg/L mixed standard stock solution (4.10) and 50% acetonitrile before use. ......

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