Method for simultaneous determination of six residual plant-growth regulators in bean sprout by using gas chromatography-tandem mass spectrometry

A growth regulator and gas chromatography technology, which is applied in the field of determination of 6 kinds of plant growth regulator residues in bean sprouts, can solve problems such as less reports on detection methods, and achieve the effect of filling technical gaps and simple methods.

Active Publication Date: 2017-02-15
ZHEJIANG ACAD OF SCI & TECH FOR INSPECTION & QUARANTINE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are few reports on the detection methods of relevant drug residues in bean sprouts at home and abroad

Method used

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  • Method for simultaneous determination of six residual plant-growth regulators in bean sprout by using gas chromatography-tandem mass spectrometry
  • Method for simultaneous determination of six residual plant-growth regulators in bean sprout by using gas chromatography-tandem mass spectrometry
  • Method for simultaneous determination of six residual plant-growth regulators in bean sprout by using gas chromatography-tandem mass spectrometry

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Experimental program
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Embodiment Construction

[0055] For further illustrating the present invention, specifically illustrate in conjunction with following examples

[0056] 1 Reagents and materials

[0057] 1.1 n-Hexane: chromatographically pure.

[0058] 1.2 Methanol: chromatographically pure.

[0059] 1.3 Formic acid: chromatographically pure.

[0060] 1.4 Methanol solution of boron trifluoride: superior grade.

[0061] 1.5 Acetonitrile: chromatographically pure

[0062] 1.6 Ethyl acetate: chromatographically pure

[0063] 1.7 Sodium chloride: analytically pure

[0064] 1.8 50mL polypropylene plastic centrifuge tube with stopper, 10mL polypropylene stopper plastic centrifuge tube, 250mL conical flask with stopper, 100mL concentration bottle, 10mL glass centrifuge tube and other utensils, disposable sterile syringe, 0.22μm filter membrane, 1.0mL , 2.0mL, 5.0mL graduated glass pipettes, etc.

[0065] 1.9 Ethyl acetate-n-hexane mixture: Take 2mL of ethyl acetate and 8mL of n-hexane to make an ethyl acetate-n-hexane ...

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Abstract

The invention relates to a determination method for six residual plant-growth regulators in a bean sprout, especially to a method for simultaneous determination of six residual plant-growth regulators in the bean sprout by using gas chromatography-tandem mass spectrometry. Six plant-growth regulators involved in the invention are composed of 4-chlorophenoxyacetic acid, 2,4-dichlorophenoxyacetic acid, naphthylacetic acid, indoleacetic acid, 2,4-D-butyl ester and indolebutyric acid. The method comprises the following steps: 1) sample treatment; 2) determination, wherein gas chromatography-tandem mass spectrometry is employed; 3) drafting of a standard curve; 4) blank test; and 5) result calculation and description. The determination method employs gas chromatography-tandem mass spectrometry for simultaneous determination of the six residual plant-growth regulators in bean sprout; and the method is simple, convenient, rapid, accurate and reliable, and the lower determination limit, recovery rate and precision of the method all accord with requirements.

Description

technical field [0001] The invention relates to a method for determining the residues of six plant growth regulators in bean sprouts, in particular to a method for quantitatively detecting six plant growth regulators in bean sprouts by gas chromatography tandem mass spectrometry / mass spectrometry. Background technique [0002] In recent years, with the repeated exposure of the "poisonous bean sprouts" incident, people have attached great importance to the quality and safety of bean sprouts. The so-called "toxic bean sprouts" refers to the illegal addition of industrial raw materials, hormones, pesticides, veterinary drugs, antibiotics, etc. that are harmful to the human body during the production of bean sprouts, thereby changing the production cycle and appearance of bean sprouts, increasing the output of bean sprouts, and finally selling bean sprouts in the market. Because many of the substances added are harmful to the human body, it is called poisonous bean sprouts. [...

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 张文华谢文侯建波邹学权童赟恺黄超群姚滨滨史颖珠钱艳李杰何建敏奚君阳
Owner ZHEJIANG ACAD OF SCI & TECH FOR INSPECTION & QUARANTINE
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