Multiparameter miniaturised sensor arrays for multiple use

A family of electrochemical thick film sensors is presented which are suita ble for different applications but are especially designed for the use in b iological fluids. One sensor unit typically contains 4-6 different sensors for different analytes. The sensors show a fast response time of < 30 s and a lifetime of up to several thousand samples. The sensors are maintenance free and exhibit good selectivity which can be increased by integrated inte rference compensation electrodes. Sensors for the following analytes have b een developed to a stage where most of them are ready to use: sodium, potas sium, ionised calcium, ionised magnesium, chloride, pH, pO(2), pCO(2), gluc ose, lactate, urea, creatinine. (C) 2001 Elsevier Science B.V. All rights r eserved.