气相色谱-串联质谱法测定三七中腐霉利残留量的不确定度评定

Uncertainty evaluation for the determination of procymidone residues in Panax notoginseng by gas chromatography tandem mass spectrometry

中文关键词:  气相色谱-串联质谱法  三七  腐霉利  不确定度

英文关键词:gas chromatography tandem mass spectrometry  Panax notoginseng  procymidone  uncertainty

中文摘要:

      目的 评定气相色谱串联质谱法测定三七中腐霉利残留量的不确定度。方法 根据JJF1059.1-2012《测量不确定度评定与表示》, 采用气相色谱串联质谱法测定三七中腐霉利残留量, 计算各不确定度的分量, 合成标准不确定度, 得到扩展不确定度, 并分析检测方法中不确定度的来源。结果 三七样品中腐霉利残留量为0.103 mg/kg时, 扩展不确定度为0.005 mg/kg(k=2)。结论 测定三七样品中腐霉利的不确定度主要来源于标准溶液的配制过程和标准曲线的拟合。

英文摘要:

      Objective To evaluate the uncertainty of the determination of procymidone residues in Panax notoginseng by gas chromatography tandem mass spectrometry. Methods According to JJF 1059.1?2012 Measurement uncertainty evaluation and presentation, the procymidone residues in Panax notoginseng was measured by gas chromatography tandem mass spectrometry, the component of each uncertainty was calculated and the standard uncertainty was synthesized to obtain the extended uncertainty. The source of uncertainty was analyzed in testing procedure. Results When the residues of procymidone in Panax notoginseng was 0.103 mg/kg, the extended uncertainty was 0.005 mg/kg (k=2). Conclusion The uncertainties of the determination of procymidone are mainly derived from the standard solution preparation process and standard curve fitting.