引用本文:
Zhao Jie CUI, Jun Cheng LIU, Lain Cun GAO, Ying Qin WEI, Jun Zeng ZHANG. Study on a New Method of Extraction of Metal Ions from Solid Matrices by Supercritical Fluid[J]. Chinese Chemical Letters,
1999, 10(6): 525-528.
Citation: Zhao Jie CUI, Jun Cheng LIU, Lain Cun GAO, Ying Qin WEI, Jun Zeng ZHANG. Study on a New Method of Extraction of Metal Ions from Solid Matrices by Supercritical Fluid[J]. Chinese Chemical Letters, 1999, 10(6): 525-528.
Citation: Zhao Jie CUI, Jun Cheng LIU, Lain Cun GAO, Ying Qin WEI, Jun Zeng ZHANG. Study on a New Method of Extraction of Metal Ions from Solid Matrices by Supercritical Fluid[J]. Chinese Chemical Letters, 1999, 10(6): 525-528.
Study on a New Method of Extraction of Metal Ions from Solid Matrices by Supercritical Fluid
摘要:
8-Hydroxyquinoline. methanol and Triton-100 were first used together in the extraction of metal ions by supercritical CO2, In the new system, the effects of pressure, temperature and the volume of CO2, on the efficiency of supercritical fluid extraction (SFE) were systematically investigated. The recovery under the optimum condition was only 11.38%, but if suitable concentration of methanol (v/v=5%) was added to the supercritical CO2, the recovery was increased significantly (83.60%. RSD=4.37%. n=5). In order to further enhance the recovery Triton X-100 was added to the samples, and the results were satisfactory (96.62%. RSD=2.85%. n=5).
English
Study on a New Method of Extraction of Metal Ions from Solid Matrices by Supercritical Fluid
Abstract:
8-Hydroxyquinoline. methanol and Triton-100 were first used together in the extraction of metal ions by supercritical CO2, In the new system, the effects of pressure, temperature and the volume of CO2, on the efficiency of supercritical fluid extraction (SFE) were systematically investigated. The recovery under the optimum condition was only 11.38%, but if suitable concentration of methanol (v/v=5%) was added to the supercritical CO2, the recovery was increased significantly (83.60%. RSD=4.37%. n=5). In order to further enhance the recovery Triton X-100 was added to the samples, and the results were satisfactory (96.62%. RSD=2.85%. n=5).
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Key words:
- Supercritical fluid extraction
- / chelating agent
- / modifier
- / surfactant
- / metal ions
- / solid matrices
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