Method for rapidly detecting triazole bactericides in soil

A detection method, triazole technology, applied in the field of rapid detection of triazole fungicides in soil, can solve the problems of easy false positive, background matrix interference, complicated pretreatment and purification steps, etc.

Inactive Publication Date: 2020-05-29
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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Problems solved by technology

[0006] Based on the urgent need to establish a rapid detection method for triazole fungicides in soil, in view of the background matrix interference, complicated pretreatment and purification steps, and easy false positives in the detection method of triazole fungicides in soil media, this application provides a method A rapid detection method for triazole fungicides in soil, said detection method comprising the following steps:

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  • Method for rapidly detecting triazole bactericides in soil
  • Method for rapidly detecting triazole bactericides in soil
  • Method for rapidly detecting triazole bactericides in soil

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[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the embodiment of the application. Obviously, the described embodiment is only a part of the application Examples, but not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0035] Establish the standard curve of 5 kinds of triazole fungicides with known concentration gradient with liquid spectrometry instrument, the establishment of described standard curve is made up of the following steps:

[0036] (1) Propiconazole (No.: GBW(E) 083565), Hexaconazole (No.: GBW(E) 083562), and Triconazole (No.: GBW(E) 082569a) standard substances of 1000mg / L were used respectively Methano...

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Abstract

The invention discloses a method for rapidly detecting triazole bactericides in soil. The detection method comprises the following steps: 1) establishing a standard curve of the triazole bactericides,2) adopting an improved QuEChERS method to carry out pretreatment on a soil sample, and 3) carrying out qualitative and quantitative determination on the triazole bactericides in combination with thestandard curve.

Description

technical field [0001] The application relates to the field of environmental protection, in particular to a rapid detection method for triazole fungicides in soil. Background technique [0002] Triazole fungicides refer to compounds containing 1,2,4-triazole rings, which have the advantages of high efficiency, low toxicity, and strong systemic properties. They are the most diverse category of fungicides in the world and are widely used in Pest control of fruits, vegetables, grains, Chinese medicinal materials, etc. [0003] With the wide application of triazole fungicides, their residues in crops have attracted more and more attention. Many countries have clearly defined the maximum residue limits (MRL) of triazole fungicides in different crops, such as The Codex Alimentarius Commission stipulates that the MRLs of triadimefon in apples and tomatoes are 0.3 and 0.2mg / kg respectively; the European Union stipulates that the MRLs of tricyclazole in grapes and spinach are both 0....

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Application Information

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IPC IPC(8): G01N30/02G01N30/04G01N30/72G01N30/86G01N30/06G01N30/12G01N30/14
CPCG01N30/02G01N30/04G01N30/72G01N30/8634G01N30/06G01N30/12G01N30/14G01N2030/042G01N2030/126G01N2030/146
Inventor 郭敏吉贵祥石利利范德玲王蕾汪贞刘济宁
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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