电位滴定法
化学
电位传感器
校准
电极
选择性
基质(化学分析)
尿
参比电极
可靠性(半导体)
校准曲线
分析化学(期刊)
色谱法
电化学
催化作用
检出限
生物化学
物理化学
统计
物理
量子力学
功率(物理)
数学
作者
Fan Wang,Jinhuan Zhang,Mengdi Zhang,Cuiyue Xu,Shengqi Cheng,Qingjiang Wang,Fan Zhang,Xiao He,Pingang He
标识
DOI:10.1016/j.aca.2022.340598
摘要
All-solid-state potentiometric sensors that are easily miniaturized and arrayed are widely used in home diagnostics. However, changes in sample matrix compositions tend to affect the basic potential of the potentiometric sensor, and pH of sample could change the response slope, thus affecting the detection reliability. This study takes the detection of glucose in urine as a model to increase the reliability of potentiometric sensors in home detection. PtAu/CNTs nanozyme modified by diboronic acid has been designed, showing better catalytic selectivity for glucose by experiments and theoretical calculations. Moreover, glucose electrode group in a multi-calibration glucose potentiometric sensing array can realize the basic potential calibration of sensing channel by the calibration channel. Meanwhile, the pH electrode group can not only measure the urine pH, but also calibrate the response slope of the glucose electrode group, thus improving the reliability of home detection.
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