薄层色谱氢焰离子检测法测定重质油的族组成

Hydrocarbon Type Analysis of Heavy Oils by TLC/FID Method

建立了快速测定重质油组成的ＴＬＣ／ＦＩＤ法，用３种展开剂可将试样较好地分离为饱和烃、芳烃、胶质和沥青质４个组成。根据大量的实验数据得到了各组分的相对校正因子值，使该方法与经典的液固色谱法有较好的对应关系。该方法精密度高，标准偏差小于３％，比液固色谱法的分析时间大大缩短。

A rapid method for analysing the hydrocarbon type of heavy oilsby thinlayer chromatography with flame ionization detection was constructed. The satt1rate,aromatics, resin and saphaltcne could be separated by means ofthree developing solvents, the separation result was satisfactary.The deviationof two results analysiscd by TLC/FID method and liquid solid chronlatographymethod was small. Because relative correction factor was achieved by processing a large of experimental data. Precision of the method was high and thestand deviation of TLC/FID metbod was less than 3%(wt).The time requiredby the n1ethod was lnl1ch lnore shorter than that usually required by liqt1idsolid chromatograpby method.