| 伏安法测定地下水中的氟 |
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| 引用本文： | 陈艳玲,姜娜.伏安法测定地下水中的氟[J].环境科学与技术,2000(1):47-49. |
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| 作者姓名： | 陈艳玲 姜娜 |
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| 作者单位： | [1]中国地质大学材料科学与化学工程学院 [2]胜利油田孤岛采油厂工艺所 |
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| 基金项目： | 国家自然科学基金!49832005 |
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| 摘 要： | 本文采用三电极系统（工作电极：玻碳电极；参比电极：甘汞电极；辅助电极：铂电极）研究了Pr（Ⅲ）－ALC－F体系吸附波的特性。在pH＝1．0的六次甲基四胺、硝酸溶液中，峰电位Ep＝-0.66V（vs．SCE）处，峰电流与F浓度在1×10－7至1×10－5mol／L范围内呈线性关系，检出限为：8×10－8mol／L，精密度为；0．7％。本法适用于各种样品的分析，具有灵敏度高，抗干扰能力强，试验简便无毒的特点。用该方法测定了地下水中的氟离子，结果令人满意。
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| 关 键 词： | 伏安法 吸附波 氟 |
Determination of F- concentration in ground water by voltammetry |
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| CHEN Yan-ling,GUO Feng,JIANG Na.Determination of F- concentration in ground water by voltammetry[J].Environmental Science and Technology,2000(1):47-49. |
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| Authors: | CHEN Yan-ling GUO Feng JIANG Na |
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| Abstract: | In the solution of (CH3 )6N4 and HNO3, (pH= 1.1),the absorption wave of Pr (N ) -ALC-F-occurs at 0. 66V(vs. SCE) in the voltammeter by the three electrodes system. In the optimum conditions, the wave height is proportional to the concentration of F- in the range of 1 X 10 7 to 1 X 10-5 mol /L. the detection limit of F- is 8 X 10-8mol/L. RSD is 1. 7%. The method has been used to determine F in the ground water and rock samples with satisfactory results. There are advantages such as height sensitivity,good accuracy,antiinterference and no poisoning in this method. |
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| Keywords: | Voltammetry Absorption wave Fluorine |
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