TY JOUR TI FEATURES OF THE GAS CHROMATOGRAPHY VAPOR-PHASE ANALYSIS AND METHODS OF INCREASING ITS ACCURACY KW vapor-phase analysis KW injecting KW single test KW sample preparation KW chromatogram KW definition accuracy JO Bulletin of KSAU AU Mayorova, L.P. AU Sobolevskaya, L.A. PY 2015 IS PB Krasnoyarsk State Agrarian University