THE EVALUATION OF SOME RELATED HETEROCYCLIC COMPOUNDS AS ANALYTICAL REAGENTS FOR METALS (Thesis)

摘要

In this investigation, thirteen related heterocyclic compounds were prepared and their analytical aspects studied. Several of the compounds were found to be highly selective and sensitive as organic analytical reagents. 2-(o-Hydroxyphenyl) benzoxazole was found to precipitate cadmium in samples containing from 5 to 50 rag of the metal with an accuracy of + 0.0002 r. and in the presence of most metals except cobalt and nickel. These latter ions can be tolerated only in small amounts.