Abstract
A miniature gas chromatography (GC) system was designed and developed using silicon micromachining and integrated circuit (IC) processing techniques. The MMGC system can separate parts-per-million (ppm) ammonia and nitrogen dioxide concentrations in less than 30 minutes when isothermally operated (80/spl deg/C) at 40 psi. The heat of adsorption of nitrogen dioxide (0.38 eV) on a CuPc thin film (0.2 /spl mu/m thick) was also independently established. As a result of the MMGC system's performance evaluation, several of the assumptions invoked in the initial design were re-investigated, and a refined technique for optimizing the MMGC system's operation and performance was developed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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