| http://www.w3.org/ns/prov#value | - The sensing electrode may be platinum, palladium, carbon, indium oxide, tin oxide, gold, iridium, copper, steel, silver, or mixtures thereof The first electrode may be formed by a technique including sputtering, vapor coating, screen printing, thermal evaporation, ink jet printing, ultrasonic spraying, slot coating, gravure printing or lithography.
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