Component analysis to isomer mixture with THz-TDS

A method for quantitative analysis of isomer mixture, with THz time domain spectroscopy, was proposed and verified experimentally. Analytic precision of better than 6% could be achieved by taking into account the transmission coefficient at the sample surface, which paved the way for practical application of this method. Reliability of this method is further confirmed by traditional high performance liquid chromatography. Furthermore, spatial distribution images for the mixture components could also be obtained conveniently with this technique.