The authors are gratelbl for financial supports IYom the National Natural Science roundation of China;the Educational Commiss
A new spectrofluorimetric method for determination of trace terbium based on its reaction with 2.6-his-(1'-phenyl-3'-methyl-5'- pyridinediacyl (H_2PMBPP) and N- cetylpyridium bromide (CPB). at an apparent pH=5.0 provi...
Abstract: Terbium can form a stable binary chelate with terephthalic acid (benzene-1. 4-dicarboxylic acid(TPA) ) having a ratio of 1: 2 in aqueous solution in the pH range of 5~6. The maximum excitation and emission ...
An automated flow-injection stopped-flow micellar enhanced Spectrofluorimetric method for determination of L-ascorbic acid (AA) is described. The method is based on the interference of laccase by AA. causing a decreas...