Sensors 2012, 12(7), 9687-9696; doi:10.3390/s120709687
Article

A Novel Instrumentation Circuit for Electrochemical Measurements

1 Department of Optometry, Chung Hwa University of Medical Technology, Tainan 717, Taiwan 2 Department of Electronic Engineering, National Kaohsiung University of Applied Science, Kaohsiung 807, Taiwan 3 General Education Center, Chung Hwa University of Medical Technology, Tainan 717, Taiwan
* Author to whom correspondence should be addressed.
Received: 27 April 2012; in revised form: 9 June 2012 / Accepted: 9 July 2012 / Published: 17 July 2012
(This article belongs to the Section Biosensors)
PDF Full-text Download PDF Full-Text [350 KB, Updated Version, uploaded 18 July 2012 09:38 CEST]
The original version is still available [420 KB, uploaded 17 July 2012 09:56 CEST]
Abstract: In this paper, a novel signal processing circuit which can be used for the measurement of H+ ion and urea concentration is presented. A potentiometric method is used to detect the concentrations of H+ ions and urea by using H+ ion-selective electrodes and urea electrodes, respectively. The experimental data shows that this measuring structure has a linear pH response for the concentration range within pH 2 and 12, and the dynamic range for urea concentration measurement is in the range of 0.25 to 64 mg/dL. The designed instrumentation circuit possesses a calibration function and it can be applied to different sensing electrodes for electrochemical analysis. It possesses the advantageous properties of being multi-purpose, easy calibration and low cost.
Keywords: instrumentation; biosensor; electrochemical measurement; multi-purpose

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Yin, L.-T.; Wang, H.-Y.; Lin, Y.-C.; Huang, W.-C. A Novel Instrumentation Circuit for Electrochemical Measurements. Sensors 2012, 12, 9687-9696.

AMA Style

Yin L-T, Wang H-Y, Lin Y-C, Huang W-C. A Novel Instrumentation Circuit for Electrochemical Measurements. Sensors. 2012; 12(7):9687-9696.

Chicago/Turabian Style

Yin, Li-Te; Wang, Hung-Yu; Lin, Yang-Chiuan; Huang, Wen-Chung. 2012. "A Novel Instrumentation Circuit for Electrochemical Measurements." Sensors 12, no. 7: 9687-9696.

Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert