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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
KeywordFrontal Analysis Method 4-hydroxybenzoic Acid Imprinted Polymer Monolith Adsorption Isotherm
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
2007-08-10
Volume28Issue:8Pages:1443-1448
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordMOLECULAR RECOGNITION ; CHIRAL SEPARATION ; ORGANIC MODIFIER ; CHROMATOGRAPHY ; PHASE
AbstractThe 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.
Language英语
WOS IDWOS:000249048900010
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140431
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
GB/T 7714
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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