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A novel urea-functionalized surface-confined octadecylimidazolium ionic liquid silica stationary phase for reversed-phase liquid chromatography. J Chromatogr A 2014; 1365:148-55. [DOI: 10.1016/j.chroma.2014.09.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 08/03/2014] [Accepted: 09/07/2014] [Indexed: 01/18/2023]
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2
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Xin-Du G, Fred E R. An Integrated Theory of Adsorption and Partition Mechanism and Each Contribution to Solute Retention in Reversed Phase Liquid Chromatography. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20030210319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3
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Xin-Du G, Fred E R. Dependence of Elution Curve and Adsorption Isotherms of Insulin on Composition of Mobile Phase of Frontal Analysis in Reversed Phase Liquid Chromatography. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20030210416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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5
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Gao J, Yu Q, Geng X. A CORRELATION BETWEEN Z AND S IN HIGH PERFORMANCE LIQUID CHROMATOGRAPHY. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-100100413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Juan Gao
- a Institute of Modern Separation Science, Northwest University , Xi'an, Shaanxi Province, 710069, P. R. China
- b The Key Laboratory of Modern Separation Science , Xi'an, Shaanxi Province, 710069, P. R. China
| | - Qiming Yu
- a Institute of Modern Separation Science, Northwest University , Xi'an, Shaanxi Province, 710069, P. R. China
- b The Key Laboratory of Modern Separation Science , Xi'an, Shaanxi Province, 710069, P. R. China
| | - Xindu Geng
- b The Key Laboratory of Modern Separation Science , Xi'an, Shaanxi Province, 710069, P. R. China
- c Institute of Modern Separation Science, Northwest University , Xi'an, Shaanxi Province, 710069, P. R. China
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6
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Xu J, Tan T, Janson JC. Mixed-mode retention mechanism for (−)-epigallocatechin gallate on a 12% cross-linked agarose gel media. J Chromatogr A 2006; 1137:49-55. [PMID: 17049539 DOI: 10.1016/j.chroma.2006.10.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2006] [Revised: 09/27/2006] [Accepted: 10/02/2006] [Indexed: 11/25/2022]
Abstract
The adsorption behaviour of (-)-epigallocatechin gallate (EGCG), the major polyphenolic substance in green tea extracts, on the cross-linked agarose gel Superose 12 HR 10/30, has been studied using a variety of solvent systems and shown to be based on a mixture of hydrogen bonding and hydrophobic interaction. The hydrogen bonding was studied in acetonitrile in the presence of different co-solvents possessing varying hydrogen bond donor (HBD) and/or hydrogen bond acceptor (HBA) characteristics. The HBA-value of the co-solvent had the highest effect whereas the HBD-value played a subordinate role. Retention due to hydrophobic interaction could be demonstrated when mobile phases containing high water content were applied. The retention of EGCG, and its analogues (-)-epigallocatechin (EGC) and (-)-catechin (C) were thus shown to be dependent on the polarity of the organic modifiers added. However, the elution order of EGC and C, was inversed to that observed in reversed phase chromatography, indicating that some hydrogen bonding was still in effect. The retardation of EGCG in the presence of a wide concentration range of acetonitrile in water confirmed the interpretation that the retention mechanism is of mixed-mode character based on both hydrogen bonding and hydrophobic interaction.
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Affiliation(s)
- Jun Xu
- Department of Bioengineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
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Longhi M, Linares M, de Bertorello MM. High Performance Liquid Chromatography of Isoxazolyl-Naphthoquinones: A Comparison Between Experimental and Theoretical Lipophilicity. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826079608014018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Marcela Longhi
- a Departamento de Farmacia Facultad de Ciencias Químicas , Universidad Nacional de Córdoba Sucursal , 16, Casilla de Correo, 61 5016, Córdoba, Argentina
| | - Marcela Linares
- a Departamento de Farmacia Facultad de Ciencias Químicas , Universidad Nacional de Córdoba Sucursal , 16, Casilla de Correo, 61 5016, Córdoba, Argentina
| | - María M. de Bertorello
- a Departamento de Farmacia Facultad de Ciencias Químicas , Universidad Nacional de Córdoba Sucursal , 16, Casilla de Correo, 61 5016, Córdoba, Argentina
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Oda Y, Mano N, Asakawa N, Yoshida Y, Sato T. Investigation of Retention Behavior for Racemate Drugs on Avidin- and Modified Avidin-Column. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10826079408013520] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Y. Oda
- a Eisai Co. Ltd., Tsukuba Research Laboratories , Tokodai 5-1-3, Tsukuba, Ibaraki , 300-26 , Japan
| | - N. Mano
- a Eisai Co. Ltd., Tsukuba Research Laboratories , Tokodai 5-1-3, Tsukuba, Ibaraki , 300-26 , Japan
| | - N. Asakawa
- a Eisai Co. Ltd., Tsukuba Research Laboratories , Tokodai 5-1-3, Tsukuba, Ibaraki , 300-26 , Japan
| | - Y. Yoshida
- a Eisai Co. Ltd., Tsukuba Research Laboratories , Tokodai 5-1-3, Tsukuba, Ibaraki , 300-26 , Japan
| | - T. Sato
- a Eisai Co. Ltd., Tsukuba Research Laboratories , Tokodai 5-1-3, Tsukuba, Ibaraki , 300-26 , Japan
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9
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Sanghvi R, Yalkowsky SH. Estimation of the Normal Boiling Point of Organic Compounds. Ind Eng Chem Res 2006. [DOI: 10.1021/ie051277g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ritesh Sanghvi
- College of Pharmacy, The University of Arizona, Tucson, Arizona 85721
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QSPR Models for Chromatographic Retention of Some Azoles with Physicochemical Properties. B KOREAN CHEM SOC 2006. [DOI: 10.5012/bkcs.2006.27.2.211] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Recent developments of the stoichiometric displacement model for separation processes. ACTA ACUST UNITED AC 2001. [DOI: 10.1007/bf02900546] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Okuda T, Nakagawa Y, Motohashi M. Complete two-dimensional separation for analysis of acidic compounds in plasma using column-switching reversed-phase liquid chromatography. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1999; 726:225-36. [PMID: 10348190 DOI: 10.1016/s0378-4347(99)00023-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A complete two-dimensional separation technique for the determination of acidic compounds in plasma was developed by using column-switching reversed-phase liquid chromatography. This technique was based on solute peak enrichment at the top of the second column during heart-cutting and an ion-pair chromatographic separation in the second column using tetrabutylammonium ion, where different separation modes in the first and second columns and solute peak enrichment at the top of the second column during heart-cutting were achieved coincidentally. Retention behaviors of two solutes, zidovudine-beta-D-glucuronide (AZT-beta-D-Gluc) and probenecid, in the first and second column and solute peak enrichment at the top of the second column were investigated for establishment of the system. Different retention behaviors of the solutes in the first and second column, which were evaluated by changes in capacity factor versus acetonitrile concentration in the mobile phases, and peak enrichment could be accomplished by using ion-pair chromatography in the second column. System suitability was confirmed by assessing the number of theoretical plates (N) of the second column for the solutes after heart-cutting. The N values in the second column after column switching were almost same as those in the case that the solutes were directly injected onto the second column. These results indicate that complete two-dimensional separation should be achieved by using this system. Furthermore, this technique was applied to method development for the determination of AZT-beta-D-Gluc and probenecid in rat plasma. The peaks of each analyte in the plasma extract obtained by deproteinization were well separated from those of endogenous substances, and easy determination of the analytes could be accomplished at the ng/ml level only by changing the acetonitrile concentration in the mobile phases.
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Affiliation(s)
- T Okuda
- Preformulation Research Laboratory, Takeda Chemical Industries, Ltd., Osaka, Japan
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13
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Influence of solvent effects on retention for a porous polymer sorbent in reversed phase liquid chromatography. Chromatographia 1997. [DOI: 10.1007/bf02490876] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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15
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Sun ZL, Song LJ, Zhang XT, Hu ZD. Study on the relationship between retention behavior and molecular structure parameters of substituted benzene derivatives in RPLC. Chromatographia 1996. [DOI: 10.1007/bf02271054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Lee YW, Row KH, So MS, Polunina IA, Larin AV. Reversed-Phase HPLC Retention of Deoxyribonucleosides as a Function of Mobile Phase Composition. ACTA ACUST UNITED AC 1995. [DOI: 10.1080/10826079508010434] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Karajiannis H, van de Waterbeemd H. The prediction of the lipophilicity of peptidomimetics. A comparison between experimental and theoretical lipophilicity values of renin inhibitors and their building blocks. PHARMACEUTICA ACTA HELVETIAE 1995; 70:67-77. [PMID: 7770478 DOI: 10.1016/0031-6865(94)00052-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
In order to test how well the lipophilicity of large and flexible molecules can be predicted by theoretical approaches, renin inhibitors and their building blocks have been investigated. Different experimental methods have been used for the determination of lipophilicity of the selected compounds, including RP-HPLC and a new pH-metric or two-phase titration method. This latter method appears to be well-suited for the log P measurement of lipophilic compounds. The experimental results have been compared to computer-assisted log P calculations (CLOGP and PrologP). Different correction terms have been introduced to correlate the experimental to the calculated results. Finally, in view of the poor oral bioavailability of most renin inhibitors, we have investigated the correlation between aqueous solubility data and their log P values.
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Affiliation(s)
- H Karajiannis
- University of Berne, Institute of Pharmacy, Switzerland
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Varga-Defterdarović L, Horvat S, Skurić M, Horvat J. Correlation of structure and retention behaviour in reversed-phase high-performance liquid chromatography. II. Methionine-enkephalin-related glycoconjugates. J Chromatogr A 1994; 687:107-12. [PMID: 7849986 DOI: 10.1016/0021-9673(94)00771-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Reversed-phase high-performance liquid chromatographic elution data for methionine-enkephalin-related glycoconjugates were analysed as a function of the identity and position of the sugar-peptide linkage. It was shown that binding to the column could be correlated with the degree of sugar moiety protection. Replacement of either the phenylalanine or methionine residue in the peptide backbone of the glycoconjugates with its D-enantiomer leads to a considerably stronger retention on a reversed-phase column. The dependence of retention times on the methanol concentration in the mobile phase suggested that, under the conditions studied, there are different retention mechanisms for glycopeptides containing unprotected sugar moieties in the molecule.
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Affiliation(s)
- L Varga-Defterdarović
- Ruder Bosković Institute, Department of Organic Chemistry and Biochemistry, Zagreb, Croatia
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Effect of the characteristics of the phase system on the retention of proteins in hydrophobic interaction chromatography. J Chromatogr A 1994. [DOI: 10.1016/0021-9673(94)80123-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Dorsey JG, Khaledi MG. Hydrophobicity estimations by reversed-phase liquid chromatography. Implications for biological partitioning processes. J Chromatogr A 1993; 656:485-99. [PMID: 8113337 DOI: 10.1016/0021-9673(93)80815-p] [Citation(s) in RCA: 173] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Liquid chromatography has long been used for the estimation of "hydrophobicity" of solutes of biological, environmental and agricultural interest. These measurements have taken the form of octanol-water partition coefficient estimation, or less often the more fundamental processes that the octanol-water partition coefficient is intended to model. Here we review both the chromatographic methods used for these estimations, their successes and failures, and discuss pertinent solution thermodynamics of the partitioning of small molecules between bulk phases, such as octanol and water, and between a bulk phase and an interphase, such as partitioning of solute molecules into lipid layers and biological membranes.
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Affiliation(s)
- J G Dorsey
- Department of Chemistry, University of Cincinnati, OH 45221-0172
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Carr PW, Li J, Dallas AJ, Eikens DI, Tan LC. Revisionist look at solvophobic driving forces in reversed-phase liquid chromatography. J Chromatogr A 1993. [DOI: 10.1016/0021-9673(93)80800-n] [Citation(s) in RCA: 84] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Reichelová V, Novotný L, Zima D. High-performance liquid chromatographic study of some biologically active analogues of arabinosylcytosine. J Chromatogr A 1991. [DOI: 10.1016/0021-9673(91)85016-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Retention characteristics of octadecylsilyl silica, trimethylsilyl silica and phenyldimethylsilyl silica in reversed-phase liquid chromatography. Chromatographia 1990. [DOI: 10.1007/bf02270457] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Kaibara A, Hirose M, Nakagawa T. Effect of the polar functional group of the solute on hydrophobic interaction with the stationary ligand in reversed-phase high-performance liquid chromatography. Chromatographia 1990. [DOI: 10.1007/bf02261221] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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