期刊论文

Residue Behavior and Dietary Risk Assessment of Beta-cypermethrin in Cabbage

中文

食品科学

1002-6630

2022

43

01

150-155

10.7506/spkx1002-6630-20210112-132

湖南省教育厅优秀青年项目（20B304）;湖南省教育厅科学研究项目（18C0142）；

本校为第一机构

为了评价高效氯氰菊酯在甘蓝上的使用安全性,在陕西、福建等十二地进行了田间试验,研究高效氯氰菊酯在甘蓝中的残留及消解动态,并进行膳食风险评估。甘蓝样品采用乙腈提取,经抽滤、盐析、浓缩后,正己烷定容至5 mL,进行气相色谱检测。结果表明:在0.01~5.00 mg/L范围内,高效氯氰菊酯质量浓度与其响应峰面积呈良好的线性关系,决定系数为0.999 9。在添加水平为0.05、0.5、5 mg/kg时,高效氯氰菊酯在甘蓝中的添加回收率范围在83%~106%之间,相对标准偏差为6%~9%,方法定量限为0.05 mg/kg。3%高效氯氰菊酯微囊悬浮剂在甘蓝上施药浓度为33.75 g/hm~2,施药2次,施药间隔期7 d,末次施药后7 d时,甘蓝样品中高效...

In order to evaluate the safety of beta-cypermethrin applied on cabbage(Brassica oleracea L.),the residue and dissipation dynamics of beta-cypermethrin in cabbage were studied through filed experiments carried out in Shaanxi,Fujian and ten other provinces in China and the dietary intake risk of beta-cypermethrin was assessed.Samples were extracted with acetonitrile.The extract was suction filtrated,salted out,concentrated and then brought to a final volume of 5 mL with n-hexane before analysis by gas chromatography(GC).The results showed that good linearity was found between the concentration ...