Ion Chromatography (IC) is the separation and quantification of anions and cations using Liquid Chromatography (LC). LC is an analytical technique based on the separation of the components of a mixture in solution by selective absorption. There are basically three modes of separation: liquid/liquid, liquid/solid, and molecular size. Once the components have been separated they are measured by a conductivity detector.

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Material identification - Comparisons made against known reference materials.

Quantification - Concentrations of components can be determined by establishing a standard curve of known concentrations.

Sensitivity - Detection limits down to parts per billion (ppb) levels.

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• Determination of ionic species in plating baths
• Determination of acidic thermal decomposition products of polymer materials
• Determination of ionic contamination on critical components

Model:Waters 626 SILK Pump & Water 432 Conductivity Detector

Sample must be able to go into solution with a solvent compatible to the LC system, or the components of interest must be able to be extracted from the sample. Components of interest must cause a change in the conductivity of the solute to be detected.

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