Enantioselectivity-Evaluation of Chiral Copper(II) Complexes Coordinated by Novel Chiral Tetradentate Ligands for Free Amino Acids by Mass Spectrometry Coupled With the Isotopicall... oleh Takashi Nakakoji, Kaori Yoshino, Kazuki Izutsu, Hirofumi Sato, Hiroyuki Miyake, Eiko Mieda, Satoshi Shinoda, Hiroshi Tsukube, Hideya Kawasaki, Ryuichi Arakawa, Daisuke Ono, Motohiro Shizuma