Integrated multi-ISE arrays with improved sensitivity, accuracy and precision

• DOI: 10.1038/srep44771
• Publication Date: 2017-03-17T10:50:43Z
• Authors: Chunling Wang; Hongyan Yuan; Zhijuan Duan; Dan Xiao
• Keywords: Accuracy and precision

Abstract Increasing use of ion-selective electrodes (ISEs) in the biological and environmental fields has generated demand for high-sensitivity ISEs. However, improving sensitivities ISEs remains a challenge because limit Nernstian slope (59.2/n mV). Here, we present universal ion detection method using an electronic integrated multi-electrode system (EIMES) that bypasses 59.2/n mV, thereby enabling substantial enhancement sensitivity The results reveal response is greatly increased from 57.2 to 1711.3 57.3 564.7 mV 57.7 576.2 by 30 Cl − electrodes, 10 F glass pH respectively. Thus, tiny change concentration can be monitored, correspondingly, accuracy precision are substantially improved. EIMES suited all types potentiometric sensors may pave way monitoring various ions with high its sensitivity.