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Method for detecting metconazole residues in fruits

A technology of meconazole and residual amount, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems that have not been reported on metconazole research, and achieve the effects of ensuring people's food safety, good separation effect, and easy operation

Inactive Publication Date: 2021-01-05
INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The detection methods of metconazole mainly include gas chromatography, gas chromatography-mass spectrometry, gas-liquid chromatography-tandem mass spectrometry, liquid chromatography-tandem mass spectrometry, etc., but there is no research on the residue behavior of metconazole in fruits to report

Method used

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  • Method for detecting metconazole residues in fruits
  • Method for detecting metconazole residues in fruits
  • Method for detecting metconazole residues in fruits

Examples

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Effect test

Embodiment 1

[0030] The invention discloses a method for detecting the residual amount of metconazole in fruits. The method comprises three steps, the first step is extraction, the second step is purification, and the third step is measurement and result calculation.

Embodiment 2

[0032] In the method for detecting metconazole residues in fruits described in Example 1, the first step of extraction is to take the fruit sample to be detected, cut it into small sections or small pieces, place it in a centrifuge tube, add acetonitrile to homogenate, add NaCl, homogenate again, and centrifuge.

Embodiment 3

[0034] The method for detecting metconazole residues in fruits described in Example 2, the addition ratio of the acetonitrile is: add 1ml of acetonitrile per 1000mg of fruit samples; the addition ratio of NaCl is: add 500mg per 1 gram of fruit samples NaCl;

[0035] When the apple or grape sample is dehydrated fruit or grape, after cutting into small pieces or small pieces, add appropriate amount of water to fully infiltrate for 5-30 minutes, and then add acetonitrile for homogenization;

[0036] The centrifugation parameter is 5000r / min centrifugation for 5min.

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Abstract

The invention discloses a method for detecting metconazole residues in fruits. The method comprises three steps of a first step of extraction, a second step of purification, and a third step of measurement and result calculation. The method is used for detecting the residual quantity of metconazole in apples and wheat.

Description

technical field [0001] The invention relates to a method for detecting the residual amount of metconazole in fruits. Background technique [0002] Meconazole is a triazole fungicide, its common name is metconazole, its chemical name is (1RS, 5RS, 1RS, 5SR)-5-(4-chlorophenyl)-2,2-dimethyl-1-( 1H-1,2,4-triazol-1-ylmethyl)-cyclopentanol. The insecticidal mechanism is to achieve the purpose of sterilization by inhibiting the activity of C-14 demethylase in the biosynthesis of ergoziol. The drug is mainly used to prevent and control Septoria tritici, Fusarium paniculata, leaf rust, stripe rust, powdery mildew, glume blight; barley dwarf rust, powdery mildew, coracospora; rye coracola, leaf rust; oat Crown rust, triticale (wheat-rye hybrid) leaf rust, Septoria. Excellent activity against Septoria sp. and rust. It has both excellent protective and therapeutic effects. It is particularly effective against wheat glume blight, and has excellent preventive and therapeutic effects....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/96G01N30/88G01N30/06
CPCG01N30/06G01N30/88G01N30/96G01N2030/062G01N2030/884
Inventor 李如美高宗军李瑞娟戴争
Owner INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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