Method for determination of flumethrin in garlic or garlic product

A technology of flufenthrin and a determination method, which is applied in the field of determination of pesticide residues in food, and can solve problems such as no literature report in detection.
CN102798682BInactive Publication Date: 2013-12-11JINAN CUSTOMS TECH CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JINAN CUSTOMS TECH CENT
Publication Date
2013-12-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for determination of flumethrin in garlic or a garlic product. The method comprises the following steps of 1, extraction comprising carrying out homogenization and / or centrifugation treatment on garlic or a garlic product by a normal hexane-dichloromethane mixture having a volume ratio of 1: 1, blow-drying an organic phase by nitrogen, and dissolving residues in normal hexane to obtain a solution needing to by purified, 2, purification comprising carrying out conditioning of an amino column, pouring the solution needing to by purified into the amino column, receiving an eluent, carrying out elution by a normal hexane-dichloromethane mixture having a volume ratio of 1: 1 to obtain a purified solution, blow-drying the purified solution by nitrogen, dissolving residues in an acetone-normal hexane mixture having a volume ratio of 10: 90, and filtering by a filter membrane having a aperture size of 0.22 microns, and 3, detection comprising determining flumethrin in the purified solution prepared from garlic or the garlic product by a gas chromatography or a gas chromatography / tandem mass spectrometry. The method adopts a gas chromatography or a tandem mass spectrometry. The method can be operated simply, has high sensitivity and good repeatability and can be widely used for residual detection of flumethrin in garlic or a garlic product.
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Description

technical field

[0001] The invention relates to a method for determining pesticide residues in food, in particular to a method for determining bifenthrin in garlic or its products. Background technique

[0002] Bifenthrin is a synthetic pyrethroid ectoparasiticide. At present, the drug has been widely used as an acaricide in the process of bee rearing [1］ , and pesticides in agriculture. However, the residues of such pesticides in honey and agricultural products will cause certain harm to the human body, which has aroused widespread concern. There are many literatures on the detection of bifenthrin residues in bee products (such as honey, royal jelly and bee pollen) at home and abroad. [2-5] and standard [6-8] . There are also many detection methods, such as gas chromatography [9-12] , liquid chromatography

[13] and gas chromatography-mass spectrometry [14-15] , but the detection in agricultural products and garlic and its products has not been reported in the litera...

Claims

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