FIELD: measurement technology. SUBSTANCE: method involves analyzing two mixtures prepared from the initial mixture by adding different quantities of two or more standard substances from the same homologic series or additives. Each mixture is analyzed chromatographically twice using different arbitrary quantities of samples to be introduced. The difference of chromatographic signals is used to determine the values of analyzed components by means of internal double standard interpolation method. The determined differences of areas under peaks corresponding to the standard substances are used to calculate their reduced values by extrapolating the relation rст=⊘(ΔQст) to the mean contents of analyzed components. The reduced differences of areas under peaks corresponding to these components is obtained by interpolating the calculated reduced differences of areas of peaks corresponding to two neighboring homologs of standard substances. The ratio of reduced differences of areas under peaks corresponding to one of the standard substances and analyzed components is used to determine the correction sensitivity coefficient for these components. EFFECT: enhanced accuracy of the method. 1 tbl
