pH- and penicillin-sensitive electrolyte-insulator-semiconductor (EIS) sensors (Al/Si/SiO2/Ta2O5 and penicillinase) have been successfully
integrated into a commercial flow-injection analysis (FIA) system. For the FIA set-up, a miniaturised home-made flow-through cell of plexiglass
with a variable internal volume from 12 to 48 l has been developed.