CAPACITANCE ELECTRODE AND SENSOR-SYSTEM CAPABLE OF SENSING CONTAMINANTS AND METHOD THEREFOR

摘要

The invention relates to an electrode, and a sensor- system for capacitively and/or photovoltaic sensing contaminants in a fluid. The invention also relates to a micro-reactor comprising such sensor- system and methods for measuring and producing. The capacitance electrode comprises: - a transducing element (6),- an affinity layer (10) that in use is in contact with a fluid to be measured, wherein the affinity layer comprises a multi-array surface; and - an organic Monolayer insulating layer (8) separating the transducing element and the affinity layer, wherein the electrode is arranged such that in use contaminants in the fluid may interact with the affinity layer.