Abstract
A newly constructed electrochemical multisensor containing 8 different sensors (5 different solid amalgam electrodes, platinum, gold and glassy carbon electrodes) for analysis of small sample volumes (5-200 µL) was developed. The multisensor was connected to the specially constructed and developed electrochemical multichannel device for sequential autonomous measurements.
This device consisted of a computer (PC or notebook), an interface card, and a control box: it enables to control up to 8 sensors (i.e., electrode sets) in a chosen sequence, where each sensor can be analyzed using different methods (e.g., DCV, DPV, coulometry, chronopotentiometry, square-wave voltammetry), different parameters, etc. The analysis of the mixture of nucleic bases adenine and guanine and of ferrocene was used to demonstrate possibilities of this device.