Patent ID: 6752927
Filing Date: 2004-06-22
Classification: G01N

Abstract:
A method for suppressed ion analysis of a plurality of different analyte ions in a sample solution, each of said analyte ions being of a common charge, positive or negative, said method comprising:(a) eluting said sample solution with an eluent, comprising electrolyte counterions of opposite charge to said analyte ions, through a separating medium effective to separate said analyte ions to form a separating medium effluent stream, (b) flowing said separating medium effluent stream through a suppression zone in which electrolyte counterions are removed to convert said electrolyte to weakly ionized form to form a suppressor sample effluent stream, and (c) converting said analyte ions in said suppressor sample effluent stream into salts in a salt-forming zone by reaction with salt-forming ions of opposite charge comprising said removed electrolyte counterions to form an analyte salt stream.