Sutlovic Davorka, Versic-Bratincevic Maja, Definis-Gojanovic Marija
From the *Department of Pathology and Forensic Medicine, University Hospital Centre Split; and †Department Forensic Medicine, University of Split School of Medicine, Split, Croatia.
Am J Forensic Med Pathol. 2014 Mar;35(1):55-8. doi: 10.1097/PAF.0000000000000077.
The effect of long-term storage on alcohol stability in postmortem blood samples was investigated. Seventy-nine blood samples were used in this study. For the first time, blood alcohol concentrations were measured within 1 to 4 days after being taken at the Laboratory of Forensic Toxicology. After storage (ranging from 191 to 468 days), each sample was reanalyzed for blood alcohol concentration, and results were compared with the original analysis. Results showed good agreement between the experimental measurements. About 90% of the results lie within 95% limits, and 10% were outside. Despite these positive correlations, the results of some blood samples showed a high variation in ethanol concentration. Deviation in alcohol concentration between replicates of up to 10% (observed in 39% samples) is not acceptable as precise forensic evidence.
研究了长期储存对死后血液样本中酒精稳定性的影响。本研究使用了79份血液样本。首次在法医毒理学实验室采集血液样本后的1至4天内测量血液酒精浓度。储存（191至468天）后，对每个样本重新分析血液酒精浓度，并将结果与原始分析进行比较。结果表明实验测量之间具有良好的一致性。约90%的结果在95%的范围内，10%超出范围。尽管存在这些正相关，但一些血液样本的结果显示乙醇浓度变化很大。重复测量的酒精浓度偏差高达10%（在39%的样本中观察到）作为精确的法医证据是不可接受的。
