Summary
Capillary zone electrophoresis (CZE) has been used for the separation of bromide, bromate, iodide, iodate, nitrite, nitrate and selenite anions. The separation was achieved using a fused silica capillary (72 cm long x 50 μm i.d.) filled with an acidic phosphate buffer (pH=3, 25 mmol/l), and with on-column UV detection at 200 nm. The influence of different experimental parameters such as pH, ionic strength and voltage, was studied. The nitrate concentration of a Rhine water sample was then determined under selected conditions and the results were compared to those obtained by high performance ion chromatography (HPIC).
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On leave from the Universitat de Barcelona (postdoctoral fellowship from ECC-BCR).
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Amran, M.B., Lakkis, M.D., Lagarde, F. et al. Separation of bromide, bromate, iodide, iodate, nitrite, nitrate and selenite anions by capillary zone electrophoresis. Fresenius J Anal Chem 345, 420–423 (1993). https://doi.org/10.1007/BF00325618
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DOI: https://doi.org/10.1007/BF00325618