Portable instrumentation for on - site analysis of toxic vapors

The center for Environmental Research at Argonne National Laboratory has developed a versatile toxic vapor analyzer. This instrument, the chemical Parameter Spectrometer (CPS-100), was designed to detect, identify, and monitor any one of 26 - compounds strored in the library, which itself may be update or expanded (perhaps to >50 compounds). Implementation of such an algorithm would effectively expanded the library size and would still provide the user with sufficient data (perhaps class identification of compounds) so as to assess many potential hazards on the spot.The reliability of such a algorithm for "hazard classification" has been evaluated and compared to the present algorithms which selectively identify unknow vapors.(AU)