... 660 HELVETICA CHIMICA ACTA - Vol. 64. Fasc. ... 3). The slope of the electrode response is 57.9 mVk 1 mV (standard deviation; theoretical: 58.2 mV) in the range of lo-' to IO p 3 ~ with a detection limit of < 10-4~. As indicated in Figure 3, membranes with 1 show a remarkable ...