Title: Determination of carbamate pesticide residues in Shiitake mushroom by GC-MS/MS
Abstract: A gas chromatography-tandem mass spectrometry(GC-MS/MS)method has been developed for determining 6 carbamate pesticide residues,i.e.,metolcarb,fenobucarb,carbofuran,pirimicarb,3-hydroxycarbofuran and carbaryl in Shiitake mushroom samples.Acetonitrile was used for extracting pesticides from samples and the extract was cleaned up by gel permeation chromatography(GPC),and the pesticide residues were identified and quantified using gas chromatography mass spectrometry detector.In the linear range(0.010-0.500 mg/L) of 6 pesticides,the correlation coefficlent was higher than 0.99.When the spiked levels were 0.020,0.040,and 0.100 mg/kg in the samples,the mean recoveries of 6 carbamate pesticides from the Shiitake mushroom were obtained from 84.0%-123.9%,the relative standard deviation values(RSDs) ranged from 0.3% to 7.7%(n=5).Under optimized conditions,the limit of detection(LOD) of the pesticides in samples were in the range of 0.046-6.4 μg/kg(3S/N),and the sensitivity,accuracy and precision of this method can meet the requirements of the pesticide residue analysis,so it can be applied to determine 6 carbamate pesticide residues in the Shiitake mushroom.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot