- 作者: Akhond, Morteza ; Shamsipur, Mojtaba
- 作者服務機構: Dept. of Chemistry, Shiraz Univ., Shiraz, Iran
- 中文摘要: Sodium-dicyclohexyl-18-crown-6 complex cation was used as carrier for the uphill transport of zinc as Zn(SCN)/sub 4//sup 2-/ complex anion. By using L-cysteine as a metal ion acceptor in the receiving phase at the optimized pH of 7.6, the amount of zinc transport through the liquid membrane after 90 min was 97.2.plmin.1.0%. The selectivity and efficiency of zinc transport from aqueous solutions containing equimolar mixtures of Ag/sup +/, Cd/sup 2+/, Co/sup 2+/, Cu/sup 2+/, Fe/sup 2+/, Ni/sup 2+ /, Pb/sup 2+/, Pd/sup 2+/, Sr/sup 2+/, Bi/sup 3+/, Cr/sup 3+/, and Fe/sup 3+/ ions was investigated. In the presence of NH/sub 2/OH, HCl as a suitable masking agent in the source phase, the interfering effect of Cu/sup 2+/ and Pb/sup 2+/ ions was diminished drastically.
- 英文摘要: --
- 中文關鍵字: Liquid Thin Membrane; Zinc Transport; Sodium-Dicyclohexyl-18- Crown-6 Carrier; Cysteine
- 英文關鍵字: 液態薄膜;鋅傳輸;鈉二環六基冠載體;半胱胺酸