| N2-苯浮选缔合光度法测定碘的研究 |
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| 引用本文： | 王庭坚,冯桂荷,陆晓华,闫永胜. N2-苯浮选缔合光度法测定碘的研究[J]. 光谱实验室, 2001, 18(5): 647-650 |
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| 作者姓名： | 王庭坚 冯桂荷 陆晓华 闫永胜 |
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| 作者单位： | 1. 吉林四平师范学院化学系
2. 华中科技大学环境科学与工程学院 |
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| 摘 要： | 本文依据在强酸性磷酸介质中,Br2氧化I-为I2,进而与I-生成配阴离子I-3,利用溴化十六烷基三甲胺(CTMAB)与I-3发生等离子对缔合物反应,生成缔合物CTMA+*I-3,该缔合物易溶于苯,且在苯中稳定,从而建立了溶剂浮选光度法测碘新方法.本法灵敏度高,选择性强,精密度好,实测了天然水及加碘的盐中碘,结果令人满意.
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| 关 键 词： | 缔合物 光度法 碘 天然水 加碘盐 测定 苯 溶剂浮选 CTMAB |
| 文章编号： | 1004-8138(2001)05-0647-04 |
| 修稿时间： | 2001-04-16 |
Determination of Iodine by Spectrophotometry with Floatation of N2-Benzene Complex |
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| WANG Ting|Jian . Determination of Iodine by Spectrophotometry with Floatation of N2-Benzene Complex[J]. Chinese Journal of Spectroscopy Laboratory, 2001, 18(5): 647-650 |
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| Authors: | WANG Ting|Jian |
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| Abstract: | A new method for determination of iodine by floatation is proposed.Br-2 oxidizes I+- into I-2,then forms I+--3 with I+-,finally forms complex CTMA++I+--3 with CTMA.The complex is dissolved in benzene and is kept stable exists.This method has advantoges in high sensitivity,seletivity and accuracy.It was used to determine the content of iodine in both natural salt and salt with iodine with satisfactory results. |
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| Keywords: | Floatation Complex Spectrophotometry Iodine. |
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