Characterization of biosensors for the detection of pesticides using a sequential injection analysis system

This paper presents a proposal for the implementation of biosensor´s characterization process using a sequential injection analysis (SIA). Characterized biosensors were used for detection of organophosphate pesticides. Initially, sensors were tests with traditional manual techniques, after that an automated probe was made with the same sensors. Different flow rates generated by the SIA system were tested. A satisfactory behavior was obtained at flow rates of 13.3μl/s and 33.3μl/s, with an operating time of 8 minutes and 4 minutes respectively. This results show the feasibility of a full automated characterization process to improve not only the time but also allow the possibility of working with more than one sensor at a time.