Auvdel M J
J Forensic Sci. 1986 Apr;31(2):426-31.
Amylase levels were determined for 148 semen samples and 20 saliva samples as well as for their corresponding stains. The effect of aging on the detectability of amylase activity in these stains was also investigated. The Phadebas amylase test was used for the quantitative assay of amylase. High levels of amylase in fluid saliva resulted in high levels being detected in saliva stains. Lower levels present in most seminal fluids produce little or no detectable amounts of amylase in stains. Interpretations are made as to the possible sources of amylase activity found in stains from laboratory casework based on both the amylase concentration and the elapsed time between collection and analysis. The evidential value of the presence or absence of amylase activity in casework stains is also discussed.
对148份精液样本、20份唾液样本及其相应污渍进行了淀粉酶水平测定。还研究了老化对这些污渍中淀粉酶活性可检测性的影响。采用Phadebas淀粉酶试验对淀粉酶进行定量测定。唾液中高水平的淀粉酶导致在唾液污渍中检测到高水平。大多数精液中较低的水平在污渍中产生很少或无法检测到的淀粉酶量。根据淀粉酶浓度以及采集和分析之间的时间间隔，对实验室案件工作中污渍中发现的淀粉酶活性的可能来源进行了解释。还讨论了案件工作污渍中淀粉酶活性存在与否的证据价值。
