Acid/base measuring sensor systems consisting of arrays of basic sensor cells are described which are constructed based on the chemical/electrical response characteristics of poly(aromatic amines). Protonation (doping) or deprotonation (de-doping) of the --N.dbd.sites in the polymers leads to characteristic...http://www.google.co.uk/patents/US5869007?utm_source=gb-gplus-sharePatent US5869007 - Conducting polymer based acid/base sensors
