Development of optical sensor for determination of perchlorate ions

2022 IEEE International Conference on Design & Test of Integrated Micro & Nano-Systems (DTS) Pub Date : 2022-06-06 DOI:10.1109/DTS55284.2022.9809846

N. B. Messaoud, C. Dridi, M. N. Abbas

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Abstract

An optical sensor for perchlorate anions (CIO4-) comprising a structure of Cobalt phthalocyanine derivative (Co(II)Pc-PAA) modified glass electrode has been developed. The immobilization of Co(II)Pc-PAA membrane was confirmed by contact angle measurements. The response was determined by the increase in the absorbance signal as a function of exposure to buffer solutions containing different concentrations of CIO4- anions. The optical sensor showed a linear response to CI04- from 10^–10M to 10^–2 M, with a limit of detection of 4.81 Χ10⁻¹⁰M, one of the lowest achieved up until now. The proposed sensor has demonstrated a good specificity to CIO4- when compared to common interferents anions such as CI⁻and NO3-. To the best of our knowledge, this is the first optode system for the detection of CIO4-, which provides a promising sensor for the specific and sensitive determination of CIO4- in environmental water samples.

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高氯酸盐离子光学传感器的研制

研制了一种由酞菁钴衍生物(Co(II)Pc-PAA)修饰玻璃电极结构组成的高氯酸盐阴离子(CIO4-)光学传感器。通过接触角的测定证实了Co(II)Pc-PAA膜的固定化作用。这种响应是通过暴露于含有不同浓度的CIO4-阴离子的缓冲溶液中吸光度信号的增加来确定的。该光学传感器对CI04-在10-10M到10 - 2m范围内呈线性响应，检测限为4.81 Χ10−10M，是迄今为止实现的最低检测限之一。与常见的干扰阴离子(如CI -和NO3-)相比，该传感器对CIO4-具有良好的特异性。据我们所知，这是第一个用于检测CIO4-的光电系统，它为环境水样中CIO4-的特异性和敏感性测定提供了一个有前途的传感器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 IEEE International Conference on Design & Test of Integrated Micro & Nano-Systems (DTS)

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