对分散固相萃取法-液相色谱法测定水果中氟吗啉残留量过程进行分析,建立数学模型。评定各不确定度分量,合成标准不确定度,计算测定结果的扩展不确定度。结果表明:主要来源于标准系列溶液配制,样品的均匀性和样品前处理过程的一致性,以及标准曲线的拟合。当置信概率为95%,采用该方法测定试样中氟吗啉残留的扩展不确定度为0.18,则试样中茚虫威残留的检测结果可表示为(1.46±0.18)mg/kg(k=2)。 The dispersion solid phase extraction - liquid chromatography determination of fructofluoro-methyl residues in the process of analysis to establish a mathematical model. Assess the components of uncertainty, the synthesis of standard uncertainty, calculation of the expanded results of the measurement uncertainty. The results show that: the main source from the standard series of solution preparation, sample uniformity and sample pretreatment process consistency, and the standard curve fitting. When the confidence probability is 95%, the extended uncertainty of determination of flumorph in the sample by this method is 0.18. The test results of indoxacarb in the sample can be expressed as (1.46 ± 0.18) mg / kg (k = 2).