Ammonia as carrier gas in capillary gas-liquid chromatography

Influence of helium and ammonia as carrier gases on retention of neutral so lutes on polyethylene glycol has been studied theoretically and experimenta lly. It was shown that the influence of ammonia on the retention varied sig nificantly depending on the solute's nature. For example, the influence is great for C-22 n-alkane and it is small for phenol. Taking into account the results obtained by various researchers it makes sense to express an opini on on the expediency of development of gas chromatography operated under th e conditions of acidic-basic chromatography. (C) 2001 Elsevier Science BN. All rights reserved.