Method for quickly screening and confirming common pesticides and rodenticides in poisoning samples of complex matrixes

A technology for complex matrices and samples, used in measuring devices, instruments, scientific instruments, etc., to shorten detection and processing time, improve detection efficiency, and simplify operation.
CN108333286AInactive Publication Date: 2018-07-27济南市疾病预防控制中心
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
济南市疾病预防控制中心
Publication Date
2018-07-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for quickly screening and confirming common pesticides and rodenticides in poisoning samples of complex matrixes. The method comprises the steps as follows: 1) a second-level mass spectrum database, including Chinese names, English names, CAS numbers, molecular weights, molecular formulas, retention time, quantitative ion pairs, qualitative ion pairs and collisionvoltage, of common pesticides is constructed by use of gas chromatography triple quadrupole tandem mass spectrometry and ultrahigh performance liquid chromatography triple quadrupole tandem linear iontrap mass spectrometry; a second-level mass spectrum database of common rodenticides is constructed by use of ultrahigh performance liquid chromatography triple quadrupole tandem linear ion trap massspectrometry; 2) samples causing food poisoning are extracted and purified, detection is performed through gas chromatography triple quadrupole tandem mass spectrometry and ultrahigh performance liquid chromatography triple quadrupole tandem linear ion trap mass spectrometry respectively, and detection conditions are identical with those of a method adopted during construction of the second-levelmass spectrum database.
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Description

technical field

[0001] The invention relates to a method for rapid screening and confirmation of common pesticides and rodenticides, which is especially suitable for the detection of food poisoning samples of complex matrices. Background technique

[0002] Food poisoning refers to non-infectious acute and subacute diseases that occur after ingesting food containing biological and chemical toxic substances or taking toxic and harmful food as food. Food poisoning caused by ingesting chemically poisonous food is chemical food poisoning, among which rat poison and pesticide poisoning are the most common. Food poisoning is one of the main problems in the field of public health and food safety in my country at this stage. Chemical food poisoning caused by toxic and harmful substances not only seriously endangers people's health, but also causes adverse social impacts, affecting a wide area and involving many people. Therefore, determining the cause of poisoning in the first time...

Claims

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