Multi-cycle loop injection for trace analysis by ion chromatography apparatus and method

摘要: An ion chromatographic apparatus and method for on-column preconcentration of trace ionic contaminants quantitative analysis by chromatography. The includes the multi-cycle, sequential steps loading purging sample solution into out a injection loop (26) to cumulatively preconcentrate separator column (30) with cumulative amount sample. Each step directing pressurized liquid, at substantially constant rate predetermined period time (26), drive up about 98 % known volume from (26). In turn, this flushed passes through an exchange resin concentration in resin.