Application of cross-linked beta-cyclodextrin polymer for adsorption of aromatic amino acids
文献类型：期刊论文
| 作者 | Tang, SW; Kong, L; Ou, JJ; Liu, YQ; Li, X; Zou, HF |
| 刊名 | journal of molecular recognition
 |
| 出版日期 | 2006 |
| 卷号 | 19期号:1页码:39-48 |
| 关键词 | beta-cyclodextrin polymer adsorption aromatic amino acids branched-chain amino acids |
| 英文摘要 | beta-cyclodextrin (beta-cyd) was cross-linked by hexamethylene diisocyanate and the polymer was investigated for adsorption of aromatic amino acids (aaa) from phosphate buffer. high adsorption rates were observed at the beginning and the adsorption equilibrium was then gradually achieved in about 45 min. the adsorption of aaa decreased with the increase of initial concentration and also temperature. under the same conditions, the adsorption efficiencies of aaa were in the order of (l)-tryptophan ((l)-trp) > (l)-phenylalanine ((l)-phe) > (l)-tyrosine ((l)-tyr). much higher adsorption values, up to 52.4 and 43.0mg/g for (l)-trp and (l)-phe, respectively, at 50 mmol/l and 3.2 mg/g for (l)-tyr at 2 mmol/l, were obtained with the beta-cyd polymer at 37 degrees c. it was shown that the adsorption of aaa on the beta-cyd polymer was consistent with the freundlich isotherm equation. the adsorption of mixed aromatic amino acids and branched-chain amino acids (bcaa) showed that aaa were preferentially adsorbed with adsorption efficiencies 10-24%, while those of bcaa were lower than 2%. it seems that the structure and hydrophobicity of amino acid molecules are responsible for the difference in adsorption, by influencing the strength of interactions between amino acid molecule and the polymer. copyright (c) 2005 john wiley & sons, ltd. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | biochemistry & molecular biology ; biophysics |
| 研究领域[WOS] | biochemistry & molecular biology ; biophysics |
| 关键词[WOS] | performance-liquid-chromatography ; molecularly imprinted polymers ; monolithic stationary phases ; efficient recognition ; separation ; cholesterol ; adsorbents ; water ; diastereomers ; equilibrium |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000234691500005 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140351]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatograph Res & Anal Ctr, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, SW,Kong, L,Ou, JJ,et al. Application of cross-linked beta-cyclodextrin polymer for adsorption of aromatic amino acids[J]. journal of molecular recognition,2006,19(1):39-48. |
| APA | Tang, SW,Kong, L,Ou, JJ,Liu, YQ,Li, X,&Zou, HF.(2006).Application of cross-linked beta-cyclodextrin polymer for adsorption of aromatic amino acids.journal of molecular recognition,19(1),39-48. |
| MLA | Tang, SW,et al."Application of cross-linked beta-cyclodextrin polymer for adsorption of aromatic amino acids".journal of molecular recognition 19.1(2006):39-48. |
入库方式： OAI收割
来源：大连化学物理研究所
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