Determination of the volatile fraction of coal tar

The coal tar was qualitative and quantitative analyzed by gas chromatography (GC) method. 74 components were identified exactly by gas chromatography-mass spectrometry (GC-MS). 31 components (37%) were quantitatively analyzed by gas chromatography-flame ionization detector (GC-FID). The linearity, accuracy, precision, limit of detection (LOD) and limit of quantitative (LOQ) determination were inspected. The scope of quantitative analysis by GC was discussed. The experimental results of thermogravimetric analysis (TGA) proved that GC quantitative analysis of the coal tar was reliable.