地下水和土壤中不同形态碘的分离测定

基金项目:

国土资源地质大调查——中国农业生态地球化学评价体系研究与成果集成项目资助(1212010610918)

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

1.
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology， National Research Center for Geoanalysis
2.
National Research Center for Geoanalysis
3.
Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology

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