| 吸光光度法测定卤水、油田水中微量碘的研究 |
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| 引用本文： | 陈玉锋,冉广芬,马海州,孟庆芬,杜秀月,田润.吸光光度法测定卤水、油田水中微量碘的研究[J].盐湖研究,2006,14(2):42-45. |
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| 作者姓名： | 陈玉锋 冉广芬 马海州 孟庆芬 杜秀月 田润 |
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| 作者单位： | 1. 中国科学院青海盐湖研究所,青海,西宁,810008;中国科学院研究生院,北京,100039
2. 中国科学院青海盐湖研究所,青海,西宁,810008 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 研究了利用亚硝酸钠为氧化剂,在酸性条件下将碘离子氧化为游离的碘,游离的碘遇淀粉形成蓝色化合物,采用分光光度法测定微量碘。试验结果表明:碘含量在4~18μg/mL范围符合朗伯比耳定律,标准偏差S=0.068%,平均回收率可达90%。利用该法对卤水、油田水中微量碘的测定结果满意。该方法简便、快速、准确。
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| 关 键 词： | 吸光光度法 测定 卤水 碘 |
| 文章编号： | 1008-858X(2006)02-0042-04 |
| 修稿时间： | 2005年12月25 |
Study on the Determination of Iodine in Brines and Oil-field Waters by Spectrophotometry |
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| CHEN Yu-Feng,RAN Guang-fen,MA Hai-zhou,MENG Qing-fen,DU Xiu-yue,TIAN Run.Study on the Determination of Iodine in Brines and Oil-field Waters by Spectrophotometry[J].Journal of Salt Lake Research,2006,14(2):42-45. |
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| Authors: | CHEN Yu-Feng RAN Guang-fen MA Hai-zhou MENG Qing-fen DU Xiu-yue TIAN Run |
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| Abstract: | The determination of iodine by spectrophotometry was studied using sodium nitrite as the oxidant.Results indicatcd that the Lambert-Beer's Law was followed in the range of 4～18ug/mL iodine content,The average recovery was 90%with a precision of 0.068% RSD(n=6).The application of this method to the determination of trace iodine in brines,oil-field waters obtained satisfactory results.The method features with simplicity,rapidness and good accuracy. |
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| Keywords: | Spectrophotometry Determination Brine Iodide |
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