Open AccessChromatographic Simulation of the Effect of a Polyvalent Counter Ion on Retention Behavior and Peak Intensity of Sulfate
Author(s) -
Masayuki Nishimura,
Morimasa Hayashi,
Atsushi Yamamoto,
Kazuichi Hayakawa,
Motoichi Miyazaki
Publication year - 1994
Publication title -
analytical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 73
eISSN - 1348-2246
pISSN - 0910-6340
DOI - 10.2116/analsci.11.755
Subject(s) - chemistry , sulfate , ion , chromatography , ion chromatography , intensity (physics) , counterion , analytical chemistry (journal) , optics , organic chemistry , physics
The effect of a mobile phase polyvalent counter ion on the retention behavior and peak intensity of sulfate in non- suppressed ion chromatography was quantitatively studied using a chromatogram simulation method. In this study, both indirect photometric detection (IPD) method and conductometric detection (CD) method were evaluated. With the IPD method, the retention of sulfate was observed to decrease in the presence of the polyvalent counter ion (Trien) without any change in peak intensity. With the CD method, however, peak intensity of sulfate decreased and, under some conditions, gave a negative peak in simulation as was also observed in actual experiments. The present work demonstrates the possibility of predicting the effect of a polyvalent counter ion on sulfate retention without resorting to physical experiments