Method for rapidly determining different producing area semen trichosanthis pesticide residue

Abstract

The invention relates to a method for rapidly determining pesticide residue, more specifically relates to a method for rapidly determining different producing area semen trichosanthis pesticide residue. The rapid determination method is characterized in that a GC-ECD method is used for rapidly determining the semen trichosanthis organic chlorine pesticide residue. The rapid determination method comprises the following steps: A) preparing and mixing a concentrated liquid of a contrast, B) pretreating a semen trichosanthis sample, C) determining a standard curve and the lowest detection limit, D) carrying out chromatography, E) carrying out quantitative determination by an external standard method and calculating the organic chlorine pesticide residue in the semen trichosanthis. According to plantation condition of different producing area semen trichosanthis medicinal materials, the generation condition of pests and the usage condition of the pesticide, the method of the invention is capable of establishing the rapid detection method of six organic chlorine pesticide residues in semen trichosanthis by the GC-ECD method, raising the accuracy and convenience of pretreatment of the traditional Chinese medicinal material samples, and providing the reliable basis for regulating the detection method of the semen trichosanthis medicinal material pesticide residue, raising the quality safety of the semen trichosanthis medicinal material and controlling the pesticide residue.

Description

technical field [0001] The invention relates to a rapid determination method for pesticide residues, in particular to a rapid determination method for the pesticide residues in Trichosanthes chinensis from different producing areas. Background technique [0002] In recent years, the problem of pesticide residues in traditional Chinese medicine has attracted more and more attention from governments around the world, and incidents of traditional Chinese medicine being banned abroad due to excessive heavy metals and pesticide residues have occurred frequently. According to the test results of 850 samples of 72 kinds of Chinese medicinal materials in the national "Ninth Five-Year Plan" research project "Standardization of Quality Standards for Chinese Medicinal Materials", the detection rate of BHC and DDT in traditional Chinese medicine is nearly 100%. Some cultivated root medicinal materials are even more seriously polluted, and banned pesticides have also been found in some f...

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Problems solved by technology

The Huzhou area of ​​Zhejiang Province is one of the main production areas of Trichosanthes chinensis, but c

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