Yin, Changna Poly(ethylene oxide) helical conformation and alkali metal cation selectivity studied using electrospray ionization mass spectrometry. [electronic resource] - Rapid communications in mass spectrometry : RCM May 2020 - e8719 p. digital Publication Type: Journal Article ISSN: 1097-0231 Standard No.: 10.1002/rcm.8719 doi