Al. Lafleur et al., A SIMPLE MULTIMODE SIZE-EXCLUSION CHROMATOGRAPHIC METHOD FOR THE DETERMINATION OF THE DEGREE OF THERMAL-TREATMENT OF FOSSIL-FUEL PYROLYSIS PRODUCTS, Energy & fuels, 7(3), 1993, pp. 357-361
Multimode size exclusion chromatography of complex mixtures from coal
pyrolysis using a poly-(divinylbenzene) column and dichloromethane mob
ile phase permitted the separation of the mixture into two fractions e
nriched in either substituted (XPAC) or unsubstituted (HPAC) polycycli
c aromatic compounds. The XPAC/HPAC ratio, a parameter easily obtained
by this method, was found to be a useful indicator of the degree of t
hermal treatment of coal and other fossil fuels. The sensitivity of th
e technique allowed it to be applied to the characterization of microg
ram-level samples produced by small laboratory-scale pyrolysis furnace
s.