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一种遥测式小型化电化学安培分析仪的研制

Development of a Telemetric, Miniaturized Electrochemical Amperometric Analyzer.

作者信息

Jung Jaehyo, Lee Jihoon, Shin Siho, Kim Youn Tae

机构信息

IT Fusion Technology Research Center, Department of IT Fusion Technology, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, Korea.

出版信息

Sensors (Basel). 2017 Oct 23;17(10):2416. doi: 10.3390/s17102416.

DOI:10.3390/s17102416
PMID:29065534
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5677258/
Abstract

In this research, we developed a portable, three-electrode electrochemical amperometric analyzer that can transmit data to a PC or a tablet via Bluetooth communication. We performed experiments using an indium tin oxide (ITO) glass electrode to confirm the performance and reliability of the analyzer. The proposed analyzer uses a current-to-voltage (I/V) converter to convert the current generated by the reduction-oxidation (redox) reaction of the buffer solution to a voltage signal. This signal is then digitized by the processor. The configuration of the power and ground of the printed circuit board (PCB) layer is divided into digital and analog parts to minimize the noise interference of each part. The proposed analyzer occupies an area of 5.9 × 3.25 cm² with a current resolution of 0.4 nA. A potential of 0~2.1 V can be applied between the working and the counter electrodes. The results of this study showed the accuracy of the proposed analyzer by measuring the Ruthenium(III) chloride ( Ru III ) concentration in 10 mM phosphate-buffered saline (PBS) solution with a pH of 7.4. The measured data can be transmitted to a PC or a mobile such as a smartphone or a tablet PC using the included Bluetooth module. The proposed analyzer uses a 3.7 V, 120 mAh lithium polymer battery and can be operated for 60 min when fully charged, including data processing and wireless communication.

摘要

在本研究中，我们开发了一种便携式三电极电化学安培分析仪，该分析仪可通过蓝牙通信将数据传输到个人电脑（PC）或平板电脑。我们使用氧化铟锡（ITO）玻璃电极进行实验，以确认该分析仪的性能和可靠性。所提出的分析仪使用电流-电压（I/V）转换器，将缓冲溶液氧化还原（redox）反应产生的电流转换为电压信号。然后该信号由处理器进行数字化处理。印刷电路板（PCB）层的电源和接地配置分为数字和模拟部分，以尽量减少各部分的噪声干扰。所提出的分析仪占地面积为5.9×3.25平方厘米，电流分辨率为0.4纳安。工作电极和对电极之间可施加0至2.1伏的电位。本研究结果通过测量pH值为7.4的10毫摩尔磷酸盐缓冲盐水（PBS）溶液中的氯化钌（III）（Ru III）浓度，展示了所提出分析仪的准确性。使用随附的蓝牙模块，测量数据可传输到PC或智能手机或平板电脑等移动设备。所提出的分析仪使用3.7伏、120毫安的锂聚合物电池，充满电后可运行60分钟，包括数据处理和无线通信。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/ac48b4a949d3/sensors-17-02416-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/0f38af32ba22/sensors-17-02416-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/0f072899ca83/sensors-17-02416-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/4daa73363b58/sensors-17-02416-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/fb7eb3bc9349/sensors-17-02416-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/7afcd440d563/sensors-17-02416-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/ac48b4a949d3/sensors-17-02416-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/0f38af32ba22/sensors-17-02416-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/0f072899ca83/sensors-17-02416-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/4daa73363b58/sensors-17-02416-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/fb7eb3bc9349/sensors-17-02416-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/7afcd440d563/sensors-17-02416-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f79c/5677258/ac48b4a949d3/sensors-17-02416-g006.jpg

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