地下水和土壤中不同形态碘的分离测定

收稿日期: 2009-01-20

修回日期: 2009-05-03

刊出日期: 2009-08-28

Separation and Determination of Different Iodine Species in Groundwater and Soil Samples

Received Date: 20 January 2009

Revised Date: 03 May 2009

Publish Date: 28 August 2009

摘要: 实验选用717强碱型阴离子树脂吸附溶液中的碘离子和碘酸根，用30 g/L氯化钠溶液和2.0 mol/L硝酸钠溶液先后从树脂上洗脱碘酸根和碘离子，达到不同形态碘分离的目的。洗脱液用碘-淀粉比色法测定碘的含量。方法已用于我国高碘地区地下水和土壤样品中不同形态碘的分析。
- 碘形态； /
- 717强碱型阴离子树脂； /
- 碘-淀粉比色法； /
- 地下水； /
- 土壤
Abstract: In this study, iodide and iodate in samples were adsorbed in exchange column containing 717 strongbase 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 iodinestarch 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 highiodine areas in China.
- iodine /
- speciation /
- 717 /
- strongbase