“…In this miniaturized gas chromatographic (GC) system a solid state Metal Oxide Semiconducting (MOX) gas sensor is used as detector, together with a Si micromachined packed GC column [5], a zero grade air unit, a commercial minipump and a minivalve. The use of silicon micromachining technology for the realization of miniaturized gas chromatographic columns was previously reported, e.g.…”