Harper J D, Martel P A, O'Donnell C M
Toxi-Lab, Inc., Irvine, California 92718.
J Anal Toxicol. 1989 Jan-Feb;13(1):31-6. doi: 10.1093/jat/13.1.31.
An analytical scheme composed of one normal-phase thin-layer chromatographic (TLC) method, one reversed-phase thin-layer chromatographic (RPTLC) method, and sequential analyte detection through four stages of color reactions is described. Eighty-one basic or neutral drugs were analyzed with this scheme and seventy-four were uniquely characterized with 95% confidence. Six of the remaining seven formed three unresolved pairs. The scheme was evaluated by mean list length analysis and shown to offer analyte resolution similar to that of a scheme of TLC and gas chromatography (GC) with nonspecific detection. Nine out of ten unknowns from the field of eighty-one drugs were uniquely identified with 95% confidence by the TLC/RPTLC scheme. The tenth unknown was not completely resolved from its isomer, but was statistically the more probable candidate.
本文描述了一种分析方案,该方案由一种正相薄层色谱(TLC)方法、一种反相薄层色谱(RPTLC)方法以及通过四个显色反应阶段进行连续分析物检测组成。使用该方案对81种碱性或中性药物进行了分析,其中74种药物具有95%置信度的独特特征。其余7种药物中有6种形成了3对无法分离的组合。通过平均列表长度分析对该方案进行了评估,结果表明该方案提供的分析物分辨率与采用非特异性检测的TLC和气相色谱(GC)方案相似。在81种药物领域中,通过TLC/RPTLC方案对十分之九的未知物进行了95%置信度的唯一鉴定。第十种未知物与其异构体未完全分离,但在统计学上是更有可能的候选物。