Cation analysis in electronics-grade organic solvents by ion chromatography

Selectivity behaviour of a bonded phosphonate–carboxylate polymeric ion exchanger for metal cations with varying eluent compositions

“…It has subsequently been utilised for the studied previously. There are some data on the determination of alkali and alkaline earth metal ions retention behaviour of these metal ions on an aminoand ammonium in many challenging matrices includ-phosphonate-based chelating ion-exchanger which ing brines / seawater and solvents [15][16][17]. The resin demonstrated very promising preliminary results, is highly cross-linked (55%) ethylvinylbenzene-di-indicative that the phosphonate group might also be a vinylbenzene with grafted carboxylate and phospho-good ligand for metal separations [21,22].…”