Effect of different external standard substances on coal-derived oils composition analysis
WANG Guang-yao
DU Shu-feng
LI Pei-lin
Abstract：As a kind of fast accurate quantitative analysis method, high performance liquid chromatography (HPLC) is widely used in oil composition and content analysis.The external standard correction method was chosento do the quantitative analysis for every component of coal-derived oils.Through the experiments, it was showed that correction factors of different external standard substances had big differences, the effect of external standard substance on oil composition analysis was serious, when the normal paraffin was used as external standard substance of saturates, with the increasing of carbonchain, the correction factors fell in turn.According to the experimental results, the deviation between the quantitative results and the real content was only 2.07% and the relative deviation of saturates was only 2.74% compared with GC quantitative method when n-nonane was chosen to be the external standard substance of saturates of <170 ℃ distillate of coal liquefaction oil, the accuracy of external standard correction method quantifying could be improved.
Keywords：HPLCcoal-derived oilshydrocarbon group composition analysisexternal standard substancecorrection factor
Publication Date：2016-01-01
Pages：4( 38-40,33 )