Separation and Determination of Different Iodine Species in Groundwater and Soil Samples
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ABSTRACT
In this study, iodide and iodate in samples were adsorbed in exchange column containing 717 strongbase anion exchange resin. Then iodate and iodide are effectively eluted by 30 g/L sodium chloride solution and 2.0 mol/L sodium nitrate solution and collected separately. Iodide and iodate in the eluates are then determined with iodinestarch colorimetry. The method provides the advantages of high precision, simple operation and has been applied to the determination of different iodine species in groundwater and soil samples from highiodine areas in China.
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