Detection of free amino acids in tea using ultra-high performance liquid chromatography-tandem mass spectrometry
DU Yingying, LIU Xiangzhen, YE Meijun, XU Jianfeng, GAO Haiyan, ZHENG Guojian
Chinese Journal of Chromatography . 2019, (6): 597 -604 .  DOI: 10.3724/SP.J.1123.2018.12041