| 查看: 442 | 回复: 1 | ||
[求助]
求翻译
|
|
Two novel types of substituted cyclam-capped β-cyclodex- trin(β-CD)- bonded silica particles have been prepared and used as chiral stationary phases in capillary electro- chromatography(CEC).The two stationary phases have a chiral selector with three recognition sites:β-CD, cyclam,and the latter’s sidearm.They exhibit excellent enantioselectivities in CEC for a wider ange of compounds as a result of the cooperative functioning of the anchored β-CD and cyclam.After inclusion of the metal ion(Ni ) from the running buffer into the substituted cyclams and their sidearm ligands,the bonded stationary phases become positively charged and can provide extra electro- static interactions with ionizable solutes and enhance the dipolar interactions with some polar neutral solutes.This enhances the host-guest interaction with somesolutes and improves chiral recognition and enantioselectivity. These new types of stationary phases exhibit great poten- tial for fast chiral separations in CEC. |
回复此楼» 猜你喜欢
290分材料工程085601求调剂 数二英一
已经有3人回复
-
0856调剂
已经有7人回复
-
化工专硕348，一志愿985求调剂
已经有9人回复
-
0856化工专硕求调剂
已经有14人回复
-
282求调剂
已经有5人回复
-
诚招农业博士
已经有3人回复
-
材料学硕318求调剂
已经有9人回复
-
338求调剂
已经有3人回复
-
材料与化工328求调剂
已经有3人回复
-
289求调剂
已经有3人回复
雨-明
木虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 2825.1
- 散金: 35
- 红花: 1
- 帖子: 257
- 在线: 107.4小时
- 虫号: 1402114
- 注册: 2011-09-14
- 性别: MM
- 专业: 色谱分析
2楼2011-09-29 12:35:48
