The majority of electrochemical sensors work by measuring Faradaic reactions caused by redox specimens on the electrode–solution interface. Measurements can be conducted either in steady-state mode or non-steady-state mode.
In a steady-state measurement the electrode is held at a constant voltage or current, and the corresponding signal is measured. In a non-steady-state measurement, the voltage or current is swept and the system response is recorded.
In this application note we reproduce the readout of a commercial blood glucose strip using the ECA-5M and disposable enzymatic strips. The chronoamperometric step is applied for a few seconds and the resulting current is integrated to obtain a glucose concentration estimate.
Results across the calibration range agree closely with the reference glucometer. Unlike a fixed-purpose reader, the ECA-5M gives full control over the waveform, the sampling, and the exported data.