Lee S H, Field L R
J Chromatogr. 1987 Jan 16;386:137-48. doi: 10.1016/s0021-9673(01)94591-1.
A selective fluorescence detection method for the determination of some N-nitrosoamines after post-column reaction has been developed for reversed-phase liquid chromatography. The N-nitroso compounds are analyzed by allowing their hydrolysis products to react with the oxidizing species Ce4+ to produce the fluorescent ion Ce3+. The detection limit for this method is at the ppb (the American billion, 10(9)) level with a linear dynamic range of 2-3 orders of magnitude.
已开发出一种用于反相液相色谱柱后反应测定某些N-亚硝胺的选择性荧光检测方法。通过使N-亚硝化合物的水解产物与氧化态Ce4+反应生成荧光离子Ce3+来分析N-亚硝化合物。该方法的检测限为十亿分之一(美国式十亿,10(9))水平,线性动态范围为2至3个数量级。