By aspirating butanone into air-hydrogen flame numerous species were produced in the flame. To detect various terminal species and monitor their concentrations the gases from different parts of the flame were pumped into gas chromatograph. The major products detected by this method were light hydrocarbons, oxides of carbon, ketones, alcohols and flame gases like nitrogen, oxygen and hydrogen. The variation in concentration of these species with hyd/air ratio of the flame has been checked. An attempt, based on the evidences obtained in these studies, is made to explain the unsual depression in tin absorption caused by organic solvents in air-hydrogen flame.