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Structurally Simple Lipophilic Polyamines as Carriers of Cupric Ions in Bulk Liquid Membranes
Author(s) -
Brinchi Lucia,
Profio Pietro Di,
Germani Raimondo,
Savelli Gianfranco,
Spreti Nicoletta
Publication year - 2002
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/1099-0690(200203)2002:5<930::aid-ejoc930>3.0.co;2-i
Subject(s) - chemistry , membrane , ion transporter , metal ions in aqueous solution , copper , stripping (fiber) , propionate , ion , inorganic chemistry , metal , selectivity , phase (matter) , facilitated diffusion , membrane transport , salt (chemistry) , organic chemistry , catalysis , biochemistry , electrical engineering , engineering
The carrier‐mediated transport of copper ions through bulk liquid membranes has been examined and the transport capability of novel lipophilic polyamines investigated. The effects of hydrophilic/lipophilic balance, the nature of the membrane and buffer, the pH of the receiving phase, the carrier, and the metal salt concentration on the transport efficiency were examined and optimal conditions for transport established. High transport efficiency − 98% of Cu II in the receiving phase after 48 h − was provided by carrier 2b (1×10 −3 M in CH 2 Cl 2 ) with propionate buffer (pH = 4.60) as source phase, containing 5×10 −3 M Cu II , and 0.1 M HCl as stripping phase. Single‐metal ion transport experiments showed potential transport selectivity for cupric ions over other ions such as Zn II , Ni II , and Co II .