- 作者: 闕山仲 ; 劉春櫻
- 作者服務機構: 台灣大學化學系
- 中文摘要: Tartrate-based sorbents of two kinds for ligand- exchange chromatography were prepared by covalent bonding of functional groups to silica gel through an amide bond. The structure and conversion of functional groups of the resin were confirmed with IR spectral and elemental analysis. The influence of pH on adsorption of metal ions to the resin was examined. The coordination behavior of the sorbent was investigated by means of IR, EPR and electronic absorption spectroscopy. The results indicate that the affinity of metal ions toward the synthesized resins decreased in the order Cu(II)>Zn(II)>Cd(II). The conformation of the copper(II)-sorbent complexes may be distorted tetragonal, whereas those of zinc(II) and cadmium(II) may be tetrahedral. These complexes between metal ion and sorbent were investigated as a stationary phase for enantiomeric separation of underivatized amino acids. Factors affecting the retention and the sample selectivity were examined. The interactions between sorbent metal complexes and analytes in this ternary system were also investigated.
- 英文摘要: --
- 中文關鍵字: Tartrate-Silica Gel; Sorbent; Ligand Exchange Chromatography; Ph Value; Coordination Behaviour; Metal Ion
- 英文關鍵字: 酒石酸矽膠;吸附劑;配位基交換層析法;pH值;配位行為;金屬離子