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Citation: LI Xiao-Gang, GUO Bin-Qian, QIN Tai-Chun, HAO Jie, YU Ping, MAO Lan-Qun. Design and Implementation of Embedded Telemetry System for Amperometric Detection[J]. Chinese Journal of Analytical Chemistry, ;2016, 44(9): 1465-1470. doi: 10.11895/j.issn.0253-3820.160234 shu

Design and Implementation of Embedded Telemetry System for Amperometric Detection

1.
School of Reliability and Systems Engineering, Beihang University, Beijing 100191, China
2.
Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

Received Date: 28 March 2016
Revised Date: 15 June 2016

Fund Project: This work was supported by the National Natural Science Foundation of China (No. 21210007).

Figures(7)

A new micro embedded telemetry system was developed for the amperometric sensing detection. Its output voltage range was ±0.5 V and resolution was <1 mV. The current acquisition range was ±1 μA and the minimum resolution was 0.2 nA. This telemetry system was designed based on microprocessor ADuCM360, including a potentiostat, a current detection module and a radio module. And the size was only 24 mm×13 mm×11 mm. The computer software written in LabVIEW language was used for data storage and display. In order to verify the accuracy and reliability of this system, an electrical performance test was performed. The current response for ascorbic acid with different concentration was recorded by using the telemetry system. The potential of working electrode was set as 30 mV, and the current response of ascorbic acid electrode had a good linear relationship with its concentration within the concentration range of 50-300 μmol/L. Linear equation was I(nA)=2.98C_AA(μmol/L)-137.39, and linear correlation coefficient R²=0.984. Moreover, the applicability of the instrument in the study for living animals was explored by using the cerebral ischemia as model.
- Telemetry system,
- Miniaturization,
- Electrochemistry,
- Amperometric,
- Ascorbic acid
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