METHOD AND DEVICE FOR IDENTIFYING COMPONENTS IN COMPLEX MIXTURES Russian patent published in 1995 - IPC

FIELD: chromatographic analysis. SUBSTANCE: two chromatograph columns are used, two of which have equal sizes and motionless phase and disposed at the same temperature region (in thermostat) where temperature is automatically controlled. The third column is located at the other thermostat at constant temperature and has motionless phase with the same type of polarity as the first two columns; the third column has to identification one. Temperature at the other thermostat is no lower than maximal temperature achieved at the first temperature zone. There are two universal type detectors (flame-ionization detectors) which are disposed at input and output of identification column. There are two or more different selective type detectors as well. EFFECT: improved precision; improved reliability. 2 cl, 2 cl, 1 dwg