“…So far, several analytical techniques have been employed to determine CIP in different matrices including liquid chromatography-mass spectrometry, 7 high-performance liquid chromatography, 8 spectrophotometry, 9 spectrofluorometry, 10 capillary electrophoresis, 11 immunoassay, 12 and chemiluminescence, 13 photoelectrochemical detection, 14 and electrochemical techniques. 15–17 Although these techniques are reliable and sensitive, most of them require several time-consuming treatment steps for sample preparation, expensive instruments, or an expert operator. Among the above techniques, electrochemical techniques are characterized by the inherent advantages of high sensitivity and selectivity, ease of use, fast response, easy miniaturization, cost-effective analysis, and enable real-time monitoring of the target analyte.…”