摘要
建立了微波辅助萃取-气相色谱法测定大米中有机磷农药的分析方法．对萃取液、微波加热条件进行了优化实验．3种有机磷农药标准曲线的线性回归系数均在0．998以上，曲线范围为10～800μg／kg；检出限在1～5μg／kg之间；其回收率均在73．6％～94．5％内；相对标准偏差在1．596～7．596之间．
A method of microwave-assisted extraction （MAE） followed by gas chromatography （GC） for the determination of organophosphorus pesticides （OPPs） in rice was developed. The optimum conditions for extraction solvents and microwave-assisted extraction time were studied. The linear ranges of the method were from 10 μg/kg to 800 μg/kg. The detection limits were from 1 μg/kg to 5μg/kg. The recoveries were from 73.6% to 94.5 %, and the RSDS were from 1.5 % to 7.5 % （ n = 3）. This method has proved to be rapid, efficient and accurate.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第2期64-66,共3页
Journal of Hunan University:Natural Sciences
基金
'化学生物传感与计量学'国家重点实验室开放基金资助项目
关键词
微波辅助萃取
有机磷农药
气相色谱法
大米
microwave-assisted extraction
organophosphorus pesticide
gas chromatography
rice
