Highly Selective Transport of a Uranyl Ion through a Liquid Membrane Containing a Lipophilic Ion-Associate of Methyltrioctylammonium and Hydroxycalix[n]arene-p-sulfonates(n=6,8) as Metal Carriers.
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- KONDO Hirotomo
- Department of Applied Chemistry, Faculty of Engineering, Sojo University
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- NISHIDA Masashi
- Department of Applied Chemistry, Faculty of Engineering, Sojo University
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- YOSHIDA Isao
- Department of Applied Chemistry, Faculty of Engineering, Sojo University
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Abstract
Uranyl ion, UO22+, in an aqueous sodium hydrogen carbonate solution of pH 4 - 8 (source phase) was simultaneously and selectively transported into a dilute sulfuric acid solution (receiving phase) through a membrane (chloroform, bulk) containing a lipophilic ion-associate of methyltrioctylammonium ion and hydroxycalix[n]arene-p-sulfonate ion, 2n (n = 6, 8), MTA+-2n, as a metal carrier. The rate of transport increased in proportion to the concentrations of UO22+ in the source phase and carrier in the membrane and along with an increase in the temperature of the system. The rate was also increased along with an increase in the pH of the source phase. None of the other metal ions were transported, or obstructed the transport of UO22+, while the presence of large amounts of sodium hydrogencarbonate and sodium chloride in the source phase interfered with the transport by causing a delay in the start of transport.
Journal
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- Analytical Sciences
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Analytical Sciences 18 (2), 113-118, 2002
The Japan Society for Analytical Chemistry
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Keywords
Details 詳細情報について
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- CRID
- 1390001204256468608
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- NII Article ID
- 10011314508
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- NII Book ID
- AA10500785
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- COI
- 1:CAS:528:DC%2BD38XhvVaqtLs%3D
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- ISSN
- 13482246
- 09106340
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- NDL BIB ID
- 6061026
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- PubMed
- 11874109
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed