Equipment | Chemical Analysis |Ion Chromatography

Ion Chromatography

Ion chromatography is used to determined concentrations of ionic species in a test sample by isolating them according to their interaction with a substrate. The technique divides ionic species based on size or particular properties. To perform ion chromatography, the test solutions is first sent through a pressurized column where species are absorbed by substrates placed within the column. Next, an extraction liquid called an eluent is run through the column, causing the absorbed ions to pass out of the column. The retention time of each ionic species is determined by its concentration in the sample. So, the different retention times can be used to discover the various concentrations of each species.