The Effect of Supporting Electrolytes in Electrochromatography

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Abstract
A three-electrode, high pressure liquid chromatographic column was developed for electrochromatography. The application of a potential to a carbonaceous stationary phase/working electrode affects the retention of various solutes. Carbon tetrachloride, methylene chloride, toluene, phenol, and pyridine were test solutes. Capacity factors for these solutes were measured as a function of applied potential. Acetonitrile, containing various supporting electrolytes, was the mobile phase.