正辛基-L-羟基脯氨酸萃取苯丙氨酸的机理及性能  

Extraction Mechanism and Property of Phenyl Alanine with n-Octyl-L-hydroxyproline

作　　者：崔玉[1] 尹少宏[1] 孙国新[1] 田晓强[1] 崔玉花[1] 

机构地区：[1]济南大学化学化工学院,济南250022

出　　处：《高等学校化学学报》2008年第5期882-886,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20301008);山东省重点学科基金资助

摘　　要：研究了正辛基-L-羟基脯氨酸萃取苯丙氨酸的性能和机理,详细考察了起始氨基酸的浓度、萃取剂的浓度、酸度、铜离子的浓度、温度等因素分别对D-和L-苯丙氨酸萃取性能的影响.随着起始氨基酸pH值的增大,萃取分配比D也增大,对映体分离系数α可以达到2.萃取反应为吸热反应,升高温度有利于反应的进行.表征了萃合物的组成,推测萃合物的结构为1∶1∶1型的三元配合物.研究结果为苯丙氨酸的萃取拆分提供了理论依据.A novel chiral extractant n-octyl-L-hydroxyproline was synthesized. The extraction mechanism and property of D- or L-phenyl alanine with n-octyl-L-hydroxyproline with n-octane and n-octanol （volume ratio, 7：3 ） as the diluent was investigated. The effect of concentrations of extractant and copper ion and pH on the extraction of phenyl alanine was studied. The influence of temperature on the extraction shows that the extraction is endothermic reaction. The extracted species were characterized and the structure was suggested. This result will be helpful for the further study on extracting and separating D,L-phenyl alanine.

关 键 词：正辛基-L-羟基脯氨酸 萃取 苯丙氨酸 

分 类 号：O614[理学—无机化学] Q517[理学—化学]