PeerJ Author 270 Points Contributions by role Author 270 Contributions by subject area Analytical Chemistry (other) Mass Spectrometry NMR Spectroscopy Novel Analytical Technologies Spectroscopic Analysis Yan Liu PeerJ Author Summary Analytical Chemistry (other) Mass Spectrometry NMR Spectroscopy Novel Analytical Technologies Spectroscopic Analysis PeerJ Contributions Articles 2 August 15, 2022 Identification and quantification of flavonoids in 207 cultivated lotus (Nelumbo nucifera) and their contribution to different colors Jing Liu, Yuetong Yu, Gangqiang Dong, Chenyang Hao, Yan Liu, Sha Chen https://doi.org/10.7717/peerj-achem.22 April 29, 2021 Detection-confirmation-standardization-quantification: a novel method for the quantitative analysis of active components in traditional Chinese medicines Xiaohong Song, Anyi Zhao, Yan Liu, Jintang Cheng, Sha Chen, An Liu https://doi.org/10.7717/peerj-achem.10