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Schematic of an artificial olfactory (e-nose) system. The components of this system consist of the following parts: (a) air filter (activated charcoal to remove ambient-air VOC hydrocarbons), (b) sample headspace chamber, (c) solenoid air valves, (d) diaphragm pump, (e) e-nose sensor array chamber, (f) data acquisition recorder and wireless transmission card, and (g) personal computer (PC).
