Trace Analysis of Some Bivalent Cations using Peak Focusation Technique with Microcolumn Ion Chromatography

Abstract
Some conditions for cation focusation on cation resin when using the microcolumn liquid chromatograph with conductometric detection are derived and verified experimentally. Separation is carried out using a complexing agent and a competitive cation in the mobile phase. Cations of transition metals, alkaline earths and lead were analysed. Sensitivity of the method ranges within tenths of p.p.b.