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Thermodynamic studies on 4-hydroxybenzoic acid-imprinted polymer monolith by frontal analysis
Chao, Meng; Zhao-Sheng, Liu; Ru-Yu, Gao; Yu-Kui, Mang
关键词Frontal Analysis Method 4-hydroxybenzoic Acid Imprinted Polymer Monolith Adsorption Isotherm
刊名CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
2007-08-10
28期:8页:1443-1448
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
关键词[WOS]MOLECULAR RECOGNITION ; CHIRAL SEPARATION ; ORGANIC MODIFIER ; CHROMATOGRAPHY ; PHASE
英文摘要The adsorption isotherms of 4-hydroxybenzoic acid imprinted monolith which was prepared by in situ therm-initiated polymerization were determined with the frontal analysis successfully. Adsorption isotherms of the monolith were measured at 20, 40 and 50 degrees C by using acetonitrile, tetrahydrofuran, methanol and acetonitrile containing 1%, 3%, 5% and 7% (volumn fraction) acetic acid as the mobile phase, respectively. The results show that the adsorption capacity of the monolith for the template was found to be much stronger than 2-hydroxybenzoic acid. The experimental data was fitted by Bi-Langmuir isotherm, and the saturation capacity and association constant of imprinted monolith was achieved. The content of acetic acid in the mobile phase, the nature of the organic mobile phase and the temperature showed some influence on the adsorbent ability and selectivity of the imprinted polymer. This phenomenon can be explained that the saturation capacity and association constant of 4-hydroxybenzoic acid on the binding sites was influenced by the chromatographic conditions much more significantly than 2-hydroxybenzoic acid.
语种英语
WOS记录号WOS:000249048900010
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140431
专题中国科学院大连化学物理研究所
作者单位1.Nankai Univ, Inst Elementoorgan Chem, State Key Lab Elementorgan Chem, Tianjin 300071, Peoples R China
2.Nankai Univ, Coll Chem, Tianjin 300071, Peoples R China
3.Tianjin Med Univ, Coll Pharm, Tianjin 300203, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R & A Ctr, Dalian 116023, Peoples R China
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Chao, Meng,Zhao-Sheng, Liu,Ru-Yu, Gao,et al. Thermodynamic studies on 4-hydroxybenzoic acid-imprinted polymer monolith by frontal analysis[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2007,28(8):1443-1448.
APA Chao, Meng,Zhao-Sheng, Liu,Ru-Yu, Gao,&Yu-Kui, Mang.(2007).Thermodynamic studies on 4-hydroxybenzoic acid-imprinted polymer monolith by frontal analysis.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,28(8),1443-1448.
MLA Chao, Meng,et al."Thermodynamic studies on 4-hydroxybenzoic acid-imprinted polymer monolith by frontal analysis".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 28.8(2007):1443-1448.
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