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A detection method for rapid screening of various pesticides and biotoxins in aquatic products

A biotoxin and detection method technology, applied in the field of food chemical analysis, can solve the problems of detection limit, unsatisfactory, interference, etc., and achieve the effect of good precision, simple method and high sensitivity

Active Publication Date: 2022-08-02
张宪臣
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the complex matrix of fish meat, which contains various components such as fat and protein, conventional processing methods, the detection limit of the target compound in Q-Exactive cannot meet the requirements of the relevant national health standards and announcements due to the interference of the matrix.

Method used

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  • A detection method for rapid screening of various pesticides and biotoxins in aquatic products
  • A detection method for rapid screening of various pesticides and biotoxins in aquatic products
  • A detection method for rapid screening of various pesticides and biotoxins in aquatic products

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Embodiment

[0059] (1) Preparation of standard solution:

[0060]Accurately weigh carbamoyl (purity ≥98.9%), carbofuran (purity ≥98.3%), 3-hydroxycarbacarb (purity ≥98.0%), isoprocarb (purity ≥98.5%), methomyl (purity ≥98.5%) ≥99.1%), Omethoate (purity ≥99.1%), Trichlorfon (purity ≥99.0%), Acetamiprid (purity ≥98.1%), Chlorsulfuron (purity ≥98.5%), Diniconazole (purity ≥98.5%) ≥99.0%), Kewen Powder (purity ≥99.0%), fenpyroximate (purity ≥99.4%), imazalil (purity ≥99.0%), metalaxyl (purity ≥98.7%), paclobutrazol (purity ≥99.0%) 99.0%), phoxaphos (purity ≥99.0%), phoxim (purity ≥98.0%), pirimicarb (purity ≥98.7%), tebuconazole (purity ≥98.5%), thiabendazole (purity ≥98.5%) 98.89%), Thiacloprid (purity ≥98.5%), triazolone (purity ≥95.0%), tricyclazole (purity ≥97.0%), carbendazim (purity ≥99.0%), pyrimethamine (purity ≥99.0%) 99.0%), Chlorphenidinol (purity ≥99.0%), fenamiphos (purity ≥99.5%), fenamiphos sulfoxide (purity ≥98.5%), aniphos sulfone (purity ≥99.0%), aldicarb (purity ≥99.0%),...

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Abstract

The invention discloses a detection method for rapidly screening various pesticides and biological toxins in aquatic products, comprising the steps of: (1) preparation of a standard solution; (2) QuEChERS extraction and purification of samples: (3) concentration; (4) ) analysis by ultra-high performance liquid chromatography-high resolution mass spectrometry. The invention uses QuEChERS to pre-treat aquatic product products, and at the same time combines the use of ultra-high performance liquid chromatography-quadrupole / electrostatic field orbitrap mass spectrometry (UPLC-Q Exactive Orbitrap HRMS) for 93 kinds of pesticides and 16 kinds of aquatic product products. The high-throughput determination of biotoxin residues is sensitive, fast, simple, accurate, time-saving, stable, and practical, and can meet the detection needs of the current market.

Description

technical field [0001] The invention relates to a detection method for rapidly screening various pesticides and biological toxins in aquatic products, belonging to the technical field of food chemical analysis. Background technique [0002] With the improvement of people's living standards, the proportion of aquatic products and their products in people's living standards is increasing, and the safety of aquatic products has become the focus of the whole society. Among the many factors that affect the quality and safety of aquatic products, pesticide and biotoxin residues are one of the main reasons. After pesticides are used in the production and processing of fruits, vegetables, grains and other crops, their residues may enter aquatic products through the food chain and the environment. products, thereby affecting human health. Biological toxins are a class of toxic chemicals secreted, metabolized and semi-biosynthesized by organisms themselves, including various chemical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 张宪臣王勇杨威李勇
Owner 张宪臣
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