Chinese Journal of Chromatography
Quantitative analysis of tryptophan and its metabolites in urine by ultra performance liquid chromatography-tandem mass spectrometry
LI Hui, CUI Lanchong, ZHANG Guolei, ZHANG Mengmeng, JIAO Lili, WU Wei
Chinese Journal of Chromatography . 2021, (5): 518 -525 .  DOI: 10.3724/SP.J.1123.2020.06022