This study was conducted to establish an analytical method for endosulfan residue in apple. Samples were extracted with 30 ml of acetone ： ethyl acetate （9：1）, purified with FlorisiL （containing activated carbon...This study was conducted to establish an analytical method for endosulfan residue in apple. Samples were extracted with 30 ml of acetone ： ethyl acetate （9：1）, purified with FlorisiL （containing activated carbon）, and detected by GC. Under those detection conditions, the detection limits of α-endosulfan, 15-endosulfan and endosulfate were 10^-11, 10^-11, and 2.5×10^-11 g, respectively. The recoveries of α-en- dosulfan were in the range of 89.49%-95.34%, with CVs in the range of 1.45%- 2.69%; the recoveries of β-endosulfan were in the range of 99.35%-100.63%, with CVs in the range of 1.39%-4.72%; and the recoveries of endosulfan suffate were in the range of 95.32%-101.15%, with CVs in the range of 1.19%-3.21%. The accu- racy, precision and sensitivity of the method all satisfy the requirements of pesticide residue analysis.展开更多
基金Supported by National Key Research and Development Program of China(2016YFD0200205-2)~~
文摘This study was conducted to establish an analytical method for endosulfan residue in apple. Samples were extracted with 30 ml of acetone ： ethyl acetate （9：1）, purified with FlorisiL （containing activated carbon）, and detected by GC. Under those detection conditions, the detection limits of α-endosulfan, 15-endosulfan and endosulfate were 10^-11, 10^-11, and 2.5×10^-11 g, respectively. The recoveries of α-en- dosulfan were in the range of 89.49%-95.34%, with CVs in the range of 1.45%- 2.69%; the recoveries of β-endosulfan were in the range of 99.35%-100.63%, with CVs in the range of 1.39%-4.72%; and the recoveries of endosulfan suffate were in the range of 95.32%-101.15%, with CVs in the range of 1.19%-3.21%. The accu- racy, precision and sensitivity of the method all satisfy the requirements of pesticide residue analysis.
