Nichols R G
Oakland Police Department Criminalistics Laboratory, CA 94607, USA.
Sci Justice. 1997 Jul-Sep;37(3):191-6. doi: 10.1016/S1355-0306(97)72173-7.
Drug proficiency tests were surveyed in an attempt to determine the cause of false positive results. The results of seventeen drug proficiency tests and surveys provided by Collaborative Testing Services (CTS) over an eight-year period were evaluated. A total of 63 errors were reported for an average rate of 2.8%. Fifty-six of the 63 respondents responsible for errors had used GC-MS, IR or a combination of the two in their analytical scheme. No errors were reported by respondents using two microcrystalline tests. Further evaluation of the analytical schemes of those responsible for the errors demonstrated that it was not the methodology that resulted in the errors, but rather the lack of critical thought on the part of the analyst.
对药物熟练度测试进行了调查，以确定假阳性结果的原因。对协作测试服务公司（CTS）在八年期间提供的17次药物熟练度测试和调查结果进行了评估。总共报告了63个错误，平均错误率为2.8%。在63个负责出现错误的受访者中，有56人在其分析方案中使用了气相色谱-质谱联用仪（GC-MS）、红外光谱仪（IR）或两者结合的方法。使用两种微晶测试的受访者未报告任何错误。对出现错误者的分析方案进行进一步评估表明，导致错误的不是方法本身，而是分析人员缺乏批判性思维。
