摘要
采用液相色谱-串联质谱（LC-MS/MS）技术对水稻植株、稻田土壤、田水、稻壳以及糙米等样品中的丙溴磷残留进行测定。试验结果表明：丙溴磷的子离子m/z 344.8和m/z 302.8可作为丙溴磷质谱分析的定性、定量确证离子;结合各样品前处理方法,丙溴磷的添加回收率均在80%以上,相对标准偏差在1.05%~9.65%之间,检测灵敏度达μg/kg水平。这表明LC-MS/MS技术能达到我国农药残留试验准则的相关规定,可用于水稻生产中丙溴磷的残留的检测。
The profenofos residues in samples of rice plant,paddy soil,paddy-filed water,rice hull and brown rice were detected by LC-MS/MS.The results showed that m/z 344.8 and m/z 302.8 can be utilized as qualitative and quantitative ions for profenofos detection;combined pre-treatment method for each sample,the recoveries of profenofos all reached over 80%,the relative standard deviation ranged from 1.05 to 9.56%,and the detection sensitivity reached level of μg/kg.Therefore,the LC-MS/MS technology can meet the requirements of Guideline on Pesticide Residue Trails in China,which can be applied to detect profenofos residues during rice production.
出处
《湖南农业科学》
2012年第10期84-86,共3页
Hunan Agricultural Sciences
基金
湖南省教育厅科研项目(12C0828)
湖南文理学院博士启动项目(2011)
