Development of ion chromatography methods for the determination of trace anions in ultra pure water from power plants
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A suppressed ion chromatography (IC) technique, using a carbonate/hydrogen carbonate or a hydroxide eluent, has been evaluated as a monitoring tool for the detection of major anions (F-, Cl-, NO3-, PO43- and SO42-) in ultra pure water and condensed steam from thermal power plants. An electrical conductivity detector with an anion-exchange column (IonPac AS14), an auto self-regenerating suppressor (ASRS), and an isocratic high-pressure pump system were used for the detection of low concentrations of inorganic anions. It was shown that the Suppressed IC technique provides a suitable means for preventing possible damage to generating equipment in power plants. The detection limits of the method for the anions of interest were LT 0.3 mu g/L.
Кључне речи:trace analysis / anions / ultra pure water / IC / power plant
Извор:Journal of the Serbian Chemical Society, 2005, 70, 7, 995-1003
ISSN: 0352-5139 (print)