Detection methods in ion chromatography: a comprehensive overview

Ion chromatography (IC) is a powerful analytical technique used to separate and quantify ionic species in various sample matrices. Detection method choice depends on the analyte(s) of interest and is crucial to achieve high sensitivity and selectivity. This article explores the fundamental principles of key detection techniques in IC, including non-suppressed and suppressed conductivity detection, UV/VIS detection, amperometric detection, and hyphenated techniques like mass spectrometry (MS) and inductively coupled plasma mass spectrometry (ICP-MS). Understanding these techniques helps IC users select the most appropriate detection system for specific applications.