| 地下水和土壤中不同形态碘的分离测定 |
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| 引用本文： | 李洪伟,刘晓端,李保山.地下水和土壤中不同形态碘的分离测定[J].岩矿测试,2009,28(4):337-341. |
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| 作者姓名： | 李洪伟 刘晓端 李保山 |
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| 作者单位： | 1. 北京化工大学化工资源有效利用国家重点实验室,北京,100029
2. 国家地质实验测试中心,北京,100037 |
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| 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 |
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| 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30g/L氯化钠溶液和2.0mol/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。
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| 关 键 词： | 碘形态 717强碱型阴离子树脂 碘-淀粉比色法 地下水 土壤 |
| 收稿时间： | 2009/1/20 0:00:00 |
| 修稿时间： | 5/3/2009 12:00:00 AM |
Separation and Determination of Different Iodine Species in Groundwater and Soil Samples |
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| LI Hong-wei,LIU Xiao-duan,LI Bao-shan.Separation and Determination of Different Iodine Species in Groundwater and Soil Samples[J].Rock and Mineral Analysis,2009,28(4):337-341. |
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| Authors: | LI Hong-wei LIU Xiao-duan LI Bao-shan |
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| Institution: | 1 (1.State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China; 2.National Research Center for Geoanalysis, Beijing 100037, China) |
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| 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. |
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| Keywords: | iodine speciation 717 strong-base anion exchange resin iodine-starch colorimetry groundwater soil |
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