Collect. Czech. Chem. Commun. 1982, 47, 2121-2127

Application of some reagents used in organic functional group analysis for identification of amines, alcohols, aldehydes and ketones to elimination of these substances from organic mixtures in reaction gas chromatography

Karel Komárek, Jarmila Nováková, Karel Ventura and Jaroslav Churáček

Department of Analytical Chemistry, Institute of Chemical Technology, 532 10 Pardubice


A number of reagents have been tested for elimination of lower aliphatic amines and alcohols from mixtures of organic compounds, viz. 4-toluenesulphonyl chloride, 3,5-dinitrobenzoyl chloride, N,N-dimethyl-4'-aminoazobenzene-4-carboxylic acid chloride, 3-nitrophthalic anhydride, phthalic anhydride, N,N-dimethyl-4-aminobenzaldehyde and 1-naphthyl isocyanate. Aldehydes and ketones have been eliminated with 2,4-dinitrophenylhydrazine or 4-nitrophenylhydrazine in the presence of phosphoric acid. The reaction column was placed in the thermostat along with the chromatographic column. The reagents were introduced on Celite 545 or Chromaton N.