Abstract
For evaluating the inertness of gas-chromatographic systems with respect to the polar components of test samples as the most important parameter of these samples, it was proposed to decrease the number of test mixture components to two but to perform the analysis of their solutions of different concentrations in contrast to previously known recommendations. Statistically significant differences in the relative chromatographic peak areas of polar and nonpolar components are a criterion for insufficient inertness. The analyte amount (expressed as the mass index pm = −log m) in the sample of a mixed solution with an inert component (n-alkane) at which differences in the relative peak areas become higher than the sums of the standard deviations of the relative areas, as compared with more concentrated solutions at the same ratios between the components, can be considered the inertness limit of a chromatographic system with respect to the characterized compound.
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