Chromatography is the collective term for a set of laboratory techniques for the separation of mixtures. It involves passing a mixture dissolved in a "mobile phase" through a stationary phase, which separates the analyte to be measured from other molecules in the mixture based on differential partitioning between the mobile and stationary phases. Subtle differences in a compound's partition coefficient result in differential retention on the stationary phase and thus changing the separation.

Related articles:

• Anions
• Cleaning Validation
• GPC Cleanup
• HPLC and IC Analysis
• HPLC Mass Spectroscopy
• Preformulation Studies