Tseng L.-H.Braumann U.Godejohann M.SHOEI-SHENG LEEAlbert K.2021-07-162021-07-16200094536https://www.scopus.com/inward/record.uri?eid=2-s2.0-0012939755&doi=10.1002%2fjccs.200000168&partnerID=40&md5=6d50143e5d1d130dec3cf873b05a6b04https://scholars.lib.ntu.edu.tw/handle/123456789/571495Structure identification of aporphine alkaloids by on-line coupling of HPLC-NMR with loop storagejournal article10.1002/jccs.2000001682-s2.0-0012939755