Lepri L, Desideri P G, Lepori M
J Chromatogr. 1976 Jul 21;123(1):175-84. doi: 10.1016/s0021-9673(00)81113-9.
The chromatographic behaviour of 48 alkaloids on cation exchangers with cellulose, paraffin and polystyrene matrices in both the acid and sodium salt forms has been investigated. Water-organic solvent mixtures, aqueous buffer solutions and organic and mineral acid solutions in both water and in aqueous-organic solvents have been used as eluents. The retention mechanisms of these compounds on alginic acid, Rexyn 102 (Hplus) and Dowex 50-X4 (Hplus) thin layers are discussed. Interesting separations of the alkaloids were carried out on alginic acid and Rexyn 102 (Hplus).
研究了48种生物碱在纤维素、石蜡和聚苯乙烯基质的阳离子交换剂上,以酸型和钠盐型存在时的色谱行为。水-有机溶剂混合物、水性缓冲溶液以及水和水-有机溶剂中的有机和无机酸溶液均用作洗脱剂。讨论了这些化合物在海藻酸、Rexyn 102(H⁺)和Dowex 50-X4(H⁺)薄层上的保留机制。在海藻酸和Rexyn 102(H⁺)上对生物碱进行了有趣的分离。