Objective To evaluate the uncertainty in the determination of emamectin benzoate residues in the water bamboo by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Methods According to the method and program of uncertainty measurement, the sources of uncertainty were analyzed, and each component of uncertainty was quantified and synthesized. Results The expanded uncertainty was 0.04 mg/kg when emamectin benzoate content in water bamboo was 0.12 mg/kg, the result was expressed as (0.12+0.04) mg/kg (k=2). Conclusion The preparation of standard series of solutions, repeatability experiments and preparation of standard reserve solution are found to be the main sources of uncertainty. This study can provide references for uncertainty evaluation of HPLC-MS/MS analysis.
标题：高效液相色谱-串联质谱法测定茭白中甲氨基阿维菌素苯甲酸盐残留量的不确定度评定
英文标题：Uncertainty evaluation of determination of emamectin benzoate residues in the water bamboo by high performance liquid chromatography-tandem mass spectrometry
