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一种固态磷酸根离子选择电极

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姜涛钦, 杨慧中. 一种固态磷酸根离子选择电极[J]. 环境工程学报, 2016, 10(10): 5631-5636. doi: 10.12030/j.cjee.201504250
引用本文: 姜涛钦, 杨慧中. 一种固态磷酸根离子选择电极[J]. 环境工程学报, 2016, 10(10): 5631-5636. doi: 10.12030/j.cjee.201504250
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JIANG Taoqin, YANG Huizhong. A solid-state phosphate ion-selective electrode[J]. Chinese Journal of Environmental Engineering, 2016, 10(10): 5631-5636. doi: 10.12030/j.cjee.201504250
Citation: JIANG Taoqin, YANG Huizhong. A solid-state phosphate ion-selective electrode[J]. Chinese Journal of Environmental Engineering, 2016, 10(10): 5631-5636. doi: 10.12030/j.cjee.201504250
shu

一种固态磷酸根离子选择电极

  • 1.

    江南大学轻工过程先进控制教育部重点实验室, 无锡 214122

  • 基金项目:

    江苏省省级环保科研课题（2012051）

    江苏省产学研前瞻性联合研究项目（BY2012070）

  • 中图分类号: X703

A solid-state phosphate ion-selective electrode

  • 1.

    Key Laboratory of Advanced Process Control for Light Industry, Ministry of Education, Jiangnan University, Wuxi 214122, China

  • Fund Project:

  • 摘要: 针对检测水中磷酸根离子浓度的问题，研究了一种以玻碳为基底的固态磷酸根离子选择电极。在一定条件下采用循环伏安法聚合硫酸钴和硫酸钠的混合溶液，并根据正交实验得出电极最佳制备条件。采用直接电位法测定电极性能指标，得到斜率为-41.7 mV，检测下限为6.3×10-5 mol·L-1，电极的线性响应范围在10-1~10-4 mol·L-1的固态磷酸根离子选择电极；电极具有较短的响应时间，很好的稳定性，对磷酸根的检测研究具有一定的意义。
    Abstract: A solid-state,phosphate ion selective electrode film that used a glassy carbon electrode substrate,was developed for determination of the phosphate concentration in water.The sensitive membrane consisting of CoSO4 and Na2SO4 was polymerized under certain conditions using cyclic voltammetry.Based on the orthogonal experiments,optimal parameters for the electrode preparation were obtained.Characteristics of the electrode were evaluated by using a direct potentiometric determination.The electrode exhibited a linear potential response in the concentration range from 10-1 to 10-4 mol·L-1,with a slope of -41.7 mV and a low detection limit of 6.3×10-5 mol·L-1.Furthermore,it also displayed a shorter response time and good stability.This study will have a positive significance for the research of phosphate detection.
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  • 收稿日期:  2015-06-11
  • 刊出日期:  2016-10-20

一种固态磷酸根离子选择电极

  • 1. 江南大学轻工过程先进控制教育部重点实验室, 无锡 214122
  • 收稿日期:  2015-06-11
基金项目:

江苏省省级环保科研课题（2012051）

江苏省产学研前瞻性联合研究项目（BY2012070）

摘要: 针对检测水中磷酸根离子浓度的问题，研究了一种以玻碳为基底的固态磷酸根离子选择电极。在一定条件下采用循环伏安法聚合硫酸钴和硫酸钠的混合溶液，并根据正交实验得出电极最佳制备条件。采用直接电位法测定电极性能指标，得到斜率为-41.7 mV，检测下限为6.3×10-5 mol·L-1，电极的线性响应范围在10-1~10-4 mol·L-1的固态磷酸根离子选择电极；电极具有较短的响应时间，很好的稳定性，对磷酸根的检测研究具有一定的意义。

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