摘要
建立气相色谱法测定牛奶中二嗪农残留量.样品经丙酮处理后用正己烷提取,用中性氧化铝柱净化,丙酮定容后用气相色谱火焰光度检测器(FPD)测定.检测方法的回收率为73.4%～96.2%,批内及批间相对标准偏差(RSD)分别为3.5%～9.1%和4.9%～7.5%,线性相关系数为0.999 9,检测限为2.0μg.kg-1,定量限为5.0μg.kg-1.
A gas chromatographic method was developed for the determination of diazinon residues in milk. Samples dissolved in acetone were extracted with n-hexane, cleaned with neutral alumina column, and determined by gas chromatography （flame photometric detector） after volume measurement with acetone. The recoveries of the determination were 73.4% -96. 2%. The values of intra and inter-assay RSD were in the range of 3.5% -9. 1% and 4. 9% -7.5 % , respectively. The linear correlation coefficient was 0. 999 9. The detection limit was 2. 0 μg . kg^-1 and the limit of quantitation remained as 5.0μg. kg^-1.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2011年第4期122-124,共3页
Journal of South China Agricultural University
基金
农业部兽药残留检测标准制订项目(农财发[2009]193号)
关键词
气相色谱
牛奶
二嗪农
残留
gas chromatography
milk
diazinon
residue
