Wan, Qian A simple and highly selective 2,2-diferrocenylpropane-based multi-channel ion pair receptor for Pb(2+) and HSO4(-). [electronic resource] - Dalton transactions (Cambridge, England : 2003) Mar 2015 - 5790-6 p. digital Publication Type: Journal Article ISSN: 1477-9234 Standard No.: 10.1039/c4dt03862b doi