Use of Complexation TLC to Investigate Selected Monosulfides. Part I. Silica Impregnated with Cu(ll), Co(ll), Ni(ll), Mn(ll), Al(lll), Cr(lll). and Fe(lll) Cations as Stationary Phase

摘要

This paper focuses on the use of Complexation liquid chromatography (in its TLC mode) to investigate eleven monosulfides. In the study we made use of the fact that monosulfides molecules contain readily polarizable sulfur atoms, which enables complex formation.In an attempt to establish the most convenient working conditions for separation of the compounds, the stationary phase (silica) layer was impregnated with salts of selected metals. This procedure resulted in modification of the chemical nature of the active sites present on the stationary phase surface, enabling more efficient separation of the analytes, although in this introductory study the monosulfides were chromatographed as individual chemical species only, to enable examination of their retention behavior unperturbed by the other components of a mixed sample.