Summary
Vanadyl sulfate, VOSO4, was characterized as the mobile phase for the ion exchange separation of Li+, Na+, NH +4 , and K+ using indirect photometric detection at 254 nm. Detection limits ranged from 0.2 ppm for Li+ to 1 ppm for K+. Indirect electrochemical detection of these separated cations by reduction of VO (II) to V3+ was compared to spectrophotometric detection. The potential of the vanadate species, HVO 2−4 , for the separation of F−, Cl−, and SO 2−4 , with indirect photometric detection was also demonstrated.
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Danielson, N.D., Wangsa, J., Jones, B.T. et al. Ion-exchange chromatography using vanadyl and vandate salts as mobile phases with indirect detection. Chromatographia 29, 139–143 (1990). https://doi.org/10.1007/BF02268700
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DOI: https://doi.org/10.1007/BF02268700