| 加碘食盐中微量碘的离子选择性电极测定 |
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| 引用本文： | 刘葵,孙衍华,汪建民.加碘食盐中微量碘的离子选择性电极测定[J].分析试验室,2006,25(6):46-48. |
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| 作者姓名： | 刘葵 孙衍华 汪建民 |
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| 作者单位： | 山东农业大学化学与材料科学学院,泰安,271018;山东农业大学化学与材料科学学院,泰安,271018;山东农业大学化学与材料科学学院,泰安,271018 |
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| 摘 要： | 在加碘食盐中加入还原剂将KIO3中的IO3^-还原为I^-,使用碘离子选择性电极技术,采用标准曲线法直接测定了溶液中的I-量.并引入表面活性剂作为增敏剂,降低了检测下限,提高了检测的灵敏度.实际测定3种食盐样品,取得了较好的效果.
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| 关 键 词： | 加碘食盐 碘 离子选择性电极 表面活性剂 |
| 文章编号： | 1000-0720（2006）06-046-03 |
| 收稿时间： | 09 19 2005 12:00AM |
| 修稿时间： | 2005-09-192005-11-28 |
Determination of trace iodine in the iodated table salt by iodine ion-selective electrode |
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| LIU Kui,SUN Yan-hua,WANG Jian-min.Determination of trace iodine in the iodated table salt by iodine ion-selective electrode[J].Chinese Journal of Analysis Laboratory,2006,25(6):46-48. |
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| Authors: | LIU Kui SUN Yan-hua WANG Jian-min |
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| Institution: | College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018 |
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| Abstract: | A new method for the determination of trace iodine in table salt using calibration curve method by means of ion-selective electrode technique was studied, based on the fact that iodate anion was reduced to I^- by a reductant.The accuracy was increased and the detection limit was decreased by adding a surfactant. Three kinds of table salt samples were determined with satisfactory results. |
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| Keywords: | Iodic salt Iodine ion-selective electrode Surfactant |
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