METHOD OF DETERMINING MOLECULAR WEIGHT AND BOILING POINT OF UNKNOWN COMPONENTS OF MIXTURE BY CHROMATOGRAPHIC-DISTRIBUTED METHOD Russian patent published in 2014 - IPC G01N30/02 

FIELD: chemistry.

SUBSTANCE: invention is used to identify unknown components of complex mixtures of natural and man-made substances in different industries: chemical, gas, oil, medicine, environmental, food, perfume etc. In the method, the analysed mixture is fed into a two-phase system consisting of immiscible liquids - hexane and acetonitrile. Gas chromatography is then used to determine percentage content of components in each phase and the logarithms of the distribution constant thereof, expressed in form of indices, as well as retention indices of non-polar phase components with linear programming of column temperature, and the difference between retention indices and indices of the distribution constant logarithm is used to determine indices of molecular weight and boiling point.

EFFECT: high accuracy of determining molecular weight and boiling point.

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