聚（3-氨基苯硼酸）修饰电极在中等偏酸性 pH 范围内测定碘化物的电化学行为。
Electrochemical determination of iodide by poly(3-aminophenylboronic acid) film electrode at moderately low pH ranges.
机构信息
Kirikkale University, Department of Chemistry, Turkey.
出版信息
Anal Chim Acta. 2011 Feb 21;687(2):137-40. doi: 10.1016/j.aca.2010.12.019. Epub 2010 Dec 17.
A new potentiometric sensor for the determination of iodide based on poly(3-aminophenylboronic acid) (PAPBA) film electrode was constructed. Poly(3-Aminophenylboronic acid) films were synthesized electrochemically on platinum electrode by cyclic voltammetry. The effect of film thickness, pH, and preconditioning parameters on the electrode performance were examined. The analytical performance was evaluated and linear calibration graphs were obtained in the concentration range of 10⁻⁶ to 10⁻¹ M iodide ion. The limit of detection was found to be 8×10⁻⁷ M. The response time of the sensor was 5 s and its lifetime is about one week. To check the selectivity of the PAPBA film for iodide ion, potential interferences such as Cl⁻, Br⁻, F⁻, CN⁻, IO₃⁻, Ca2+, and Mg2+ were tested. The PAPBA electrode was also employed as a sensing platform for the determination of iodide ions in commercial table salt.
一种基于聚（3-氨基苯硼酸）（PAPBA）薄膜电极的测定碘化物的新电位传感器被构建。通过循环伏安法在铂电极上电合成聚（3-氨基苯硼酸）薄膜。考察了膜厚度、pH 值和预处理参数对电极性能的影响。评估了分析性能，并在 10⁻⁶ 到 10⁻¹ M 碘离子浓度范围内获得了线性校准图。检测限为 8×10⁻⁷ M。传感器的响应时间为 5 s，其寿命约为一周。为了检查 PAPBA 薄膜对碘离子的选择性，测试了潜在的干扰物，如 Cl⁻、Br⁻、F⁻、CN⁻、IO₃⁻、Ca2+和 Mg2+。PAPBA 电极还被用作测定商业食盐中碘化物离子的传感平台。
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