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Method for determining carbamate drug residue in poultry eggs

A technology of carbamates and residues, which is applied in the field of high performance liquid chromatography-tandem mass spectrometry and the determination of carbamates residues in poultry eggs, can solve problems such as unused poultry eggs samples, and achieve recovery and The effect of good repeatability, simple operation and high degree of automation

Inactive Publication Date: 2018-08-24
AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is no liquid chromatography tandem mass spectrometry method for the simultaneous determination of eight carbamate drugs in poultry eggs in China. The literature reports mainly include gas chromatography, gas-mass spectrometry, and liquid-mass spectrometry for the determination of one of the pesticides , the simultaneous determination of eight carbamate drugs in poultry eggs by high performance liquid chromatography tandem mass spectrometry has not been reported
In foreign literatures, gas chromatography-mass spectrometry (LC / MS-MS) has been used to detect carbamate drugs in vegetables, but it has not been used in poultry egg samples

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  • Method for determining carbamate drug residue in poultry eggs
  • Method for determining carbamate drug residue in poultry eggs
  • Method for determining carbamate drug residue in poultry eggs

Examples

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Embodiment 1

[0034] Example 1 Using the method of the present invention, respectively determine carbosulfan, 3-hydroxy carbofuran, aldicarb sulfone, carbofuran, aldicarb, aldicarb sulfoxide in 6 poultry eggs according to the following steps , carbavir and methomyl residues:

[0035] (1) Sample preparation: poultry eggs were shelled, homogenized, frozen and stored to obtain poultry egg samples;

[0036](2) Sample pretreatment: Accurately weigh 2 g of poultry egg samples prepared in step (1), place them in a 50 mL polypropylene centrifuge tube, add 10 mL of 0.1% formic acid acetonitrile crude extract, homogenize for 1 min, and shake for 10 min , at 4°C, centrifuge at 8000 r / min for 8 min, extract the supernatant into a chicken heart bottle to obtain the extract; repeat the extraction once with 10 mL of 0.1% formic acid acetonitrile crude extract to obtain the extract; combine twice Add 2mL of isopropanol to the extract, condense to near dryness in a rotary evaporator at 50°C to obtain a con...

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Abstract

The present invention relates to a method for determining carbamate drug residue in poultry eggs. The method comprises steps such as sample preparation; sample pretreatment; organic solvent extraction; use of a solid phase extraction column for removal of pigment impurities, blowing with nitrogen to near dry, dissolving of the residue in a mobile phase, and filtering membrane filtration of a solution for UPLC-TQS analysis; standard solution preparation; and high performance liquid chromatography-tandem mass spectrometry measurement. The method has the advantages of simple operation, rapidity,high degree of automation, fast extraction efficiency, good recovery rate and repeatability, and can simultaneously determine the residual amount of carbamate drugs in the poultry eggs.

Description

technical field [0001] The present invention relates to a method for the determination of carbamate drug residues in poultry eggs, in particular to a high performance liquid chromatography-tandem mass spectrometer method for the determination of eight carbamate drug residues in poultry eggs, which belongs to the field of pesticide residues Physical and chemical detection technology field. Background technique [0002] With the improvement of people's living standards, food safety and quality issues have attracted more and more attention from the people. Poultry and egg products are agricultural products consumed in people's daily life, and the problem of pesticide residues in them is directly related to the health of consumers. At the same time, after my country's accession to WTO, non-tariff technical barriers from egg importing countries have brought unprecedented pressure on my country's poultry and egg exports, among which the problem of excessive agricultural and veter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
CPCG01N30/88G01N2030/884
Inventor 郭宏斌杨春亮叶剑芝林玲
Owner AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI