Programmed temperature retention indices: Calculation of linear programmed temperature retention indices of halogenated benzenes from isothermal data

A procedure is described and evaluated that allows the calculation of linear programmed temperature retention indices of halogenated benzenes. The retention index values obtained during programmed temperature analyses were predicted by starting From three isithermal data. The calculation method previously used for the prediction of programmed temperature retention times was simultaneously applied ta a sample mixture and to reference n-alkanes series. Experimental retention index values, measured in differently programmed conditions, were found to agree with the calculated ones.