College of Science, Agricultural University of Hebei, Baoding 071001, China.
College of Food Science and Technology, Agricultural University of Hebei, Baoding 071001, China.
Food Chem. 2014 Aug 15;157:119-24. doi: 10.1016/j.foodchem.2014.02.007. Epub 2014 Feb 13.
Graphene reinforced hollow fibre liquid phase microextraction combined with high performance liquid chromatography-diode array detection was developed for the determination of some carbamate pesticides (metolcarb, carbaryl, isoprocarb, and diethofencarb) in fruit samples. The main parameters that affect the extraction efficiency for the carbamates were investigated. Under the optimum conditions, a good linearity was observed in the range of 1.0-100.0 ng g(-1) for carbaryl and 3.0-100.0 ng g(-1) for the other three analytes, with the correlation coefficients (r) of 0.9965-0.9993. The limits of detection of the method ranged from 0.2 to 1.0 ng g(-1). The relative standard deviations were in the range from 6.2% to 7.8%. The results indicated that the developed method is sensitive and efficient for the determination of the carbamate pesticides in fruit samples.
采用石墨烯增强中空纤维液相微萃取与高效液相色谱-二极管阵列检测联用技术，建立了一种测定水果样品中几种氨基甲酸酯类农药（灭多威、西维因、异丙威和涕灭威）的方法。研究了影响氨基甲酸酯类农药萃取效率的主要参数。在最佳条件下，西维因在 1.0-100.0ng g(-1) 范围内，其他三种分析物在 3.0-100.0ng g(-1) 范围内具有良好的线性关系，相关系数（r）为 0.9965-0.9993。该方法的检出限范围为 0.2-1.0ng g(-1)。相对标准偏差在 6.2%-7.8%范围内。结果表明，该方法灵敏、高效，可用于水果样品中氨基甲酸酯类农药的测定。
