Transport of Gold Ion from a Hydrochloric Acid Solution across a Supported Liquid Membrane Containing Sulfide Podand.

• LACHOWICZ Elwira

  Department of Analytical Chemistry, Warsaw University of Technology

抄録

The transport of gold ions (5×10^-5M) from a diluted hydrochloric acid solution to a stripping solution across a supported liquid membrane (SLM) containing 0.1M solution of polydentate neutral sulfide podand 1, 12-di-2-thienyl-2, 5, 8, 11- tetrathiadodecane (TTD) in m-chlorotoluene was studied. The rate of transport of gold ions increased in the sequence of the stripping solutions, NaBr_??_NH₃, thiourea<NaSCN<NaI<thiosulfate. Among three microporous polymers used, the rate with Celgard 2500 membrane is ca. 23% higher than for Celgard 4510 or 2502. The present result shows that the selectivity for gold ion is good against copper, zinc and iron ions present in 200:1 excess. The gold flux (J) increases almost linearly with an increase in the initial gold concentration over the range 10^-5-10^-4M; for 5×10^-5M Au it is equal to 10.3×10^-8mol cm^-2 h^-1.

収録刊行物

• Analytical Sciences

  Analytical Sciences 11 (2), 277-280, 1995

  社団法人 日本分析化学会

キーワード

• Gold ion transport
• supported liquid membrane
• extraction
• gold
• sulfide podand

詳細情報

• CRID: 1390282679230062464
• NII論文ID: 10002405172
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.11.277
• COI: 1:CAS:528:DyaK2MXltVagt7k%3D
• ISSN: 13482246
• ISSN: 09106340
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.11.277.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.11.277/fulltext.html
• Web Site: http://www.jstage.jst.go.jp/article/analsci1985/11/2/11_2_277/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
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