Reverse-Phase High Performance Liquid Chromatography of Metal Chelates of 4-(2-Pyridylazo)resorcinol and 4-(2-Thiazolylazo)resorcinol. Simultaneous Determination of Low Concentrations of Co, Ni and Fe
- 1 January 1994
- journal article
- Published by Institute of Organic Chemistry & Biochemistry in Collection of Czechoslovak Chemical Communications
- Vol. 59 (10) , 2209-2226
- https://doi.org/10.1135/cccc19942209
Abstract
The behaviour of stable and inert metal chelates of 4-(2-pyridylazo)resorcinol and 4-(2-thiazolylazo)resorcinol in RP HPLC and in its ion-pair modification (IP RP HPLC) on Separon SGX RPS silica gel was studied. Good results were obtained by the ion-pair variant in water methanol solutions at pH 7 in the presence of cetyltrimethylammonium bromide. The technique proved to be convenient for the preconcentration, separation and quantitation of low concentrations of Fe, Co, and Ni in waters.Keywords
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