Evaluation of Uncertainty in Measurement of Etha-nol in Blood by HS-GC

Abstract

Abstract: Objective To study the uncertainty in measurementof the concentration of ethanol in blood. Methods The concentra-tion of ethanol in blood was analyzed by headspace gas chromatog-raphy and the source of uncertainty was confirmed. Results Theexpanded uncertainty was 0.02mg/mL when the concentration ofethanol in blood was 1.00mg/mL. Conclusion The uncertainty inmeasurement of the concentration of ethanol in blood was contrib-uted primarily by the measured value.[

Key words: uncertainty, ethanol, blood, headspace gas chroma-tography

摘要： 目的评估血液中乙醇测定结果的不确定度。方法用顶空气相色谱法测定血液样本中乙醇质量浓度,从测定程序分析测量不确定度的来源,计算测定结果的不确定度。结果血液样本中乙醇质量浓度两次测定平均值为1.00mg/mL,扩展不确定度为0.02 mg/mL。结论血液中乙醇测定结果的不确定度主要来源于平行测定的误差。

关键词: 不确定度, 乙醇, 血液, 顶空气相色谱

ZHUO Xian-yi;MA Dong;BU Jun;SHEN Bao-hua;LIU Wei;XIANG Ping (Institute of Forensic Sciences;Ministry of Justice;Shanghai 000;China)[. Evaluation of Uncertainty in Measurement of Etha-nol in Blood by HS-GC[J]. , 2004(03): 12-15.

卓先义;马栋;卜俊;沈保华;刘伟;向平. 顶空气相色谱法测定血液中乙醇不确定度的评估[J]. , 2004(03): 12-15.

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Evaluation of Uncertainty in Measurement of Etha-nol in Blood by HS-GC

顶空气相色谱法测定血液中乙醇不确定度的评估

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