Application of pattern recognition and piezoelectric sensor array for the detection of organic compounds.
Organic vapours were measured by an array of piezoelectric crystal detectors. Quartz crystals were coated by different GC stationary phases. Four coated crystals were placed in an array and pattern recognition was used for identification of the compounds including acetone, benzene, chloroform and pentane. A computer program was developed for the measurement of the frequency changes and data processing. Pattern recognition method using feature extraction was applied for identification of analytes.
Barkó
G
G
University of Veszprém, Department of Analytical Chemistry 8201, Veszprém, P.O. Box 158, Hungary.
Papp
B
B
Hlavay
J
J