De Paoli M, Taccheo-Barbina M, Bontempelli G
Regional Centre for the Experimental Agriculture of Friuli-Venezia Giulia, Italy.
J Chromatogr. 1991 Jun 28;547(1-2):355-65. doi: 10.1016/s0021-9673(01)88659-3.
A gas chromatographic system for the evaluation of linear temperature-programmed retention indices allowing n-alkanes to be adopted as the reference retention markers for any type of analyte, irrespective of the atoms present in their molecules, is described. It is based on the simultaneous use of two different detectors (a flame ionization detector and a specific detector suitable for the sample components), both connected (in parallel) to the same column outlet. The performance of this system has been tested by measuring the retention indices of fifteen chlorinated pesticides under conditions of linear programming temperature, by adopting an electron-capture detector as the specific detector. The reliability of the retention indices thus determined has been proven by verifying that they can be reproduced under different chromatographic conditions.
描述了一种气相色谱系统，用于评估线性程序升温保留指数，该系统允许将正构烷烃用作任何类型分析物的参考保留标记，而不论其分子中存在的原子如何。它基于同时使用两个不同的检测器（火焰离子化检测器和适合样品成分的特定检测器），这两个检测器（并联）连接到同一柱出口。通过采用电子捕获检测器作为特定检测器，在线性程序升温条件下测量了15种氯代农药的保留指数，对该系统的性能进行了测试。通过验证在不同色谱条件下可以重现所确定的保留指数，证明了由此确定的保留指数的可靠性。
