Method for detecting 18 kinds of organic chloride pesticide residues in Chinese medicinal material
A technology for pesticide residues and traditional Chinese medicinal materials, applied in the field of pesticide residue detection, can solve the problems of long residue time, complicated purification, different sample matrices, etc., and achieves the effect of quickness, convenience, cost, and simple process.
Inactive Publication Date: 2012-02-29
INST OF MEDICINAL PLANT DEV CHINESE ACADEMY OF MEDICAL SCI
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The invention discloses a method for 18 kinds of organic chloride pesticide residues in a Chinese medicinal material. In the method, gas chromatography is used for measuring organic chloride pesticides in the sample, wherein the sample is subject to extraction and purification prior to measurement. After organic chloride pesticides in the Chinese medicinal material are extracted by using an organic solvent and concentrated and the solvent is transferred, interfering substances in the extraction liquid are removed by using the concentrated sulfuric acid sulfonation method, and the supernatant liquid is taken by centrifugation and measured by using gas chromatography. The residues in the organic chloride pesticides are calculated through a standard working curve. The method provided by the invention has high measurement accuracy, simple steps, various pesticide kinds and low cost.
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