Jonson C S, Strömberg L
SKL National Laboratory of Forensic Science, Linköping, Sweden.
J Forensic Sci. 1993 Nov;38(6):1472-7.
Comparison of profiles is a well established way to find links between confiscated drugs. It is a laborious and time consuming task to manually compare large numbers of profiles to find common-batch links. To facilitate the comparison a computerized method has been developed. It is described and applied to a set of amphetamine impurity profiles. From each profile, areas of selected peaks are fed to the computer. By using quotients of corresponding peaks, the computer finds pairs of closely related profiles. With a sufficient numbers of peaks, the method is tolerant to variations in intensity between profiles, random peak area variations and a few strongly deviating peak areas. The program was written in Q-basic from Microsoft and may be run on any IBM-compatible personal computer. The method may also be used for analyzing data from other forensic objects, when the descriptors chosen are affected by errors like those described in the text.
图谱比较是确定没收毒品之间联系的一种成熟方法。手动比较大量图谱以找出同批次联系是一项艰巨且耗时的任务。为便于比较，已开发出一种计算机化方法。本文对该方法进行了描述，并将其应用于一组苯丙胺杂质图谱。从每个图谱中，选定峰的面积被输入计算机。通过使用相应峰的商值，计算机找出密切相关的图谱对。有足够数量的峰时，该方法能容忍图谱间强度变化、随机峰面积变化以及一些严重偏离的峰面积。该程序用微软的Q - basic编写，可在任何IBM兼容个人计算机上运行。当所选描述符受文中所述类似误差影响时，该方法也可用于分析来自其他法医鉴定对象的数据。
