Anion carrier mediated membrane transport of phosphate: selectivity of H2PO4- over Cl-
Anion carrier mediated membrane transport of phosphate: selectivity of H2PO4- over Cl-
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DOI:
10.1021/ja00104a040
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发表时间:
1994-12
影响因子:
15
通讯作者:
H. Visser;D. Rudkevich;W. Verboom;F. D. Jong;D. Reinhoudt
中科院分区:
文献类型:
--
作者:
H. Visser;D. Rudkevich;W. Verboom;F. D. Jong;D. Reinhoudt
numerous papers appeared on the selective transport of salts through supported liquid membranes (SLMs) mediated by neutral cation carriers. In transport assisted by neutral cation carriers such as simple crown ethers, calixarenes, or natural ionophores like valinomycin, anions affect the transport rates because of the different dehydration energies. Therefore, lipophilic anions like CIO4-, NO3-, or SCN- are often used as the counterion. Much less lipophilic anions like Cl- or H2PO4-have only been transported by charged anion carriers (ACs) via an ion-exchange mechanism,2-4 and the transport selectivity follows the Hofmeister series:5 prefer-entially (H2PO4-) anions organic solvents the combined action of Lewis Br0nsted acidic the