Pengzhou Second People's Hospital 1 article published in JoVE Chemistry HPLC Coupled with Chemical Fingerprinting for Multi-Pattern Recognition for Identifying the Authenticity of Clematidis Armandii Caulis Fangqing Wang*1, Zengkai Qian*1, Guolu Liao*2, Jing Zeng2, Dan Huang2, Qiquan Liu2, Xingliang Xie1 1School of Pharmacy, The Second Class Laboratory of Traditional Chinese Medicine Pharmaceutics, National Administration of Traditional Chinese Medicine, Chengdu Medical College, 2 Here, we present a protocol to establish high-performance liquid chromatography (HPLC), coupled with chemical fingerprint multi-pattern recognition, which provides a new strategy for effectively identifying the genuine varieties of Clematidis Armandii Caulis and its adulterants.