Synthesis, Characterisation and Extraction Behaviour of Calix[4]Arene-Based Phosphonic Acidselectronic Supplementary Information (Esi) Available: Tables S1–S3 and Figs. S1 and S2. See Http://Www.rsc.org/Suppdata/P2/B1/B105489A/
AuthID
P-00M-ZDD
P-00M-ZDD