引用本文:
李家政, 史作清, 范云鸽. Zn2+型磺酸树脂对维生素B12的配位吸附及洗脱性能[J]. 应用化学,
2002, 19(10): 946-949.
Citation: LI Jia-Zheng, SHI Zuo-Qing, FAN Yun-Ge. Coordination Adsorption of VB12 on D72Zn2+ Resin and Its Elution[J]. Chinese Journal of Applied Chemistry, 2002, 19(10): 946-949.
Citation: LI Jia-Zheng, SHI Zuo-Qing, FAN Yun-Ge. Coordination Adsorption of VB12 on D72Zn2+ Resin and Its Elution[J]. Chinese Journal of Applied Chemistry, 2002, 19(10): 946-949.
Zn2+型磺酸树脂对维生素B12的配位吸附及洗脱性能
English
Coordination Adsorption of VB12 on D72Zn2+ Resin and Its Elution
Abstract:
The coordination adsorption resins were prepared by loading different transition metal ions on macroporous sulphonic resin(D72) and acrylic acid resin(D152) respectively, and the coordination adsorption of VB12 on the resins in various media has been investigated. The sulphonic resin loaded with Zn2+ (D72Zn2+) was found to possess the best adsorption and desorption properties. The adsorption isotherm of VB12 on D72Zn2+ resin in ethanol fits the Langmuir adsorption equation, and the saturated adsorption capacity from ethanol reaches 61 mg/g. The leakage capacity by column operation was 34 mg/g and water appeared an effective eluant with 94% desorption percentage.
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Key words:
- VB12
- / coordination adsorption
- / sulphonic resin
- / separation
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