中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Aqueous two phase extraction process of tryptophan based on functionalized ionic liquids
作者: Li, Changping1;  Li, Zhuo1, 2;  Wang, Ailing1;  Yin, Jingmei1;  Wang, Jian1;  Li, Huaxi1;  Liu, Qingshan3
刊名: RSC ADVANCES
发表日期: 2013
DOI: 10.1039/c3ra23061a
卷: 3, 期:18, 页:6356-6361
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Investigation of aqueous two-phase extraction process of tryptophan was carried out by using functionalized ionic liquids (FILs), such as 3-methyl-1-(N,N-diethylcarbonylmethyl) imidazolium chlorite ([MDCmim]Cl), 3-methyl-1-(N, N-diethylcarbonylmethyl) imidazolium tetrafluoroborate ([MDCmim]BF4) and 3-methyl-1-(methoxycarbonylmethyl) imidazolium tetrafluoroborate ([EAmim]BF4). Some important factors that affect extraction process, such as effect of types of IL, pH, mass of IL, the amount of phosphate, and systems temperature were probed systematically. Some important results are obtained as follows: tryptophan can be extracted with aqueous two phase systems based on FILs successfully. The sequence of partition coefficients of tryptophan in the various ionic liquids based aqueous two phase systems follows: [MDCmim]Cl > ([MDCmim]BF4) approximate to ([EAmim]BF4) > ([bmim]BF4). pH influences partition coefficients greatly. When pH = 13, the partition coefficient of tryptophan can reach up to 180 by [MDCmim]Cl/K2HPO4 aqueous two phase system. Finally, extraction mechanisms were investigated through H-1 NMR and experimental study. The new hydrogen bond formed between tryptophan and amide group in FILs and ion exchange are found to be the main mechanisms for the extraction process. Notably, with the above valuable information, the new ionic liquids with two amide groups 1,3-bis (N, N-diethylcarbonylmethyl) imidazolium chlorite ([BMDCim]Cl) were designed and synthesized and its partition coefficient can achieve 570, which is much higher than the existing FILs and traditional ILs.
关键词[WOS]: AMINO-ACIDS ;  ASSISTED EXTRACTION ;  BIPHASIC SYSTEMS ;  IMIDAZOLIUM ;  SEPARATION ;  HEXAFLUOROPHOSPHATE ;  SOLVENT ;  MEDIA ;  CO2
语种: 英语
WOS记录号: WOS:000317584200023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137919
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Dalian Univ, Dept Chem Engn, Dalian 116012, Peoples R China
2.Dalian Ocean Univ, Sch Sci, Dalian, Peoples R China
3.Dalian Inst Chem Phys, Dalian, Peoples R China

Recommended Citation:
Li, Changping,Li, Zhuo,Wang, Ailing,et al. Aqueous two phase extraction process of tryptophan based on functionalized ionic liquids[J]. RSC ADVANCES,2013,3(18):6356-6361.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Li, Changping]'s Articles
 [Li, Zhuo]'s Articles
 [Wang, Ailing]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Li, Changping]‘s Articles
 [Li, Zhuo]‘s Articles
 [Wang, Ailing]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace