| 自动顶空GC/MS测定血液中乙醇含量不确定度评定 |
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| 引用本文： | 周枝凤,马安德,陈凌云,沈梅,邹飞.自动顶空GC/MS测定血液中乙醇含量不确定度评定[J].中国法医学杂志,2010,25(1). |
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| 作者姓名： | 周枝凤 马安德 陈凌云 沈梅 邹飞 |
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| 作者单位： | 南方医科大学公共卫生与热带医学学院,广东,广州,510515 |
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| 摘 要： | 目的评定自动顶空—气相色谱—质谱法(GC/MS)测定血液中乙醇含量的不确定度。方法从分析测量过程着手,依据不确定度评定的指导性文件,分析了不确定度来源,量化不确定度分量,计算检测结果的合成标准不确定度和扩展不确定度。结果血液样本两次测定结果平均值为0.738mg/mL的扩展不确定度为0.084mg/mL。结论血液中乙醇含量的不确定度主要来源于样品检测、乙醇标准溶液和标准曲线。
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| 关 键 词： | 法医毒物分析 测量不确定度 自动顶空GC/MS 乙醇 |
Evaluation of measurement uncertainty for the determination of ethanol in human blood by auto-headspace GC/MS |
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| Zhou Zhifeng,Ma Ande,Chen Lingyun,Shen Mei,Zou Fei.Evaluation of measurement uncertainty for the determination of ethanol in human blood by auto-headspace GC/MS[J].Chinese Journal of Forensic Medicine,2010,25(1). |
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| Authors: | Zhou Zhifeng Ma Ande Chen Lingyun Shen Mei Zou Fei |
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| Institution: | Zhou Zhifeng;Ma Ande;Chen Lingyun;Shen Mei;Zou Fei/School of Public Health and Tropical Medicine;Southern Medical University;Guangzhou 510515;China |
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| Abstract: | Objective To evaluate the measurement uncertainty for the determination of ethanol in human blood by auto-headspace GC/MS.Methods Each source of uncertainty,arising from the procedure of testing,was analyzed and confirmed according to the guidelines of the uncertainty in measurement.After each uncertainty component was evaluated,the combined standard uncertainty and the expanded uncertainty of the result were calculated.Results The expanded uncertainty was 0.084mg/mL when the concentration of ethanol in blo... |
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| Keywords: | forensic toxicological analysis measurement uncertainty auto-headspace GC/MS ethanol |
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