Chemical characterization of coal tar and coal derived liquid based on their separation by high performance liquid chromatography analyzed by FI-MS measurements.

概要

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For the purpose of obtaining information on chemical components of coal tar, a method combining the use of HPLC and field ionization-MS (FI-MS), together with the computer, was developed to conveniently characterize coal derived liquids. Separation by HPLC is carried out by connecting to the cyano column, a pack with sample-deposited teflon powder. By supplying the various carriers having gradually increased polarity, 4 fractions were obtained with single stage chromatography. Assuming the molecular weight as 14n+U(n, U: integral numbers, -11_??_U_??_2) and using the numbers of double bonds and aromatic rings as the apparent unsaturated extent to define the U, the FI-MS data were presented in a tabular form with 14 columns by the computer so that members of any homologous series appear in the same column. The components in coal tar were classified into about 40 identifiable chemical types. The values of the ultimate analysis and the 1H-NMR analysis were used supplementally for identifying the components by each chemical type.
公益社団法人石油学会の論文