Fig. 8.
Dose-response curves of combined multi-analyte sensor for three determination methods under the same conditions as for the single-analyte sensor. All techniques show a comparable response as the single-analyte sensors. a The all-electrolyte concentration with the impedance measurement is highly reliable in the physiological-relevant range from 1 to 500 mmol L−1. b A similar reliability within the relevant range is provided for the detection of potassium concentrations with the potentiometric sensor. The slope of the linear fit is 103 ± 1 mmol dec−1. c Glucose determination with the amperometric setup. LOD of 135 ± 5 μmol L−1 and LOQ of 410 ± 15 μmol L−1 were obtained. Potentiometric determinations were performed with a d Nafion/KCl/PVC-protected RE and a e LIG RE