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Schurig V. The Reciprocal Principle of Selectand-Selector-Systems in Supramolecular Chromatography †. Molecules 2016; 21:E1535. [PMID: 27854299 PMCID: PMC6274307 DOI: 10.3390/molecules21111535] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/02/2016] [Accepted: 11/07/2016] [Indexed: 11/20/2022] Open
Abstract
In selective chromatography and electromigration methods, supramolecular recognition of selectands and selectors is due to the fast and reversible formation of association complexes governed by thermodynamics. Whereas the selectand molecules to be separated are always present in the mobile phase, the selector employed for the separation of the selectands is either part of the stationary phase or is added to the mobile phase. By the reciprocal principle, the roles of selector and selectand can be reversed. In this contribution in honor of Professor Stig Allenmark, the evolution of the reciprocal principle in chromatography is reviewed and its advantages and limitations are outlined. Various reciprocal scenarios, including library approaches, are discussed in efforts to optimize selectivity in separation science.
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Affiliation(s)
- Volker Schurig
- Institute of Organic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany.
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2
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Han T, Zhang Y, Cao Q, Liu S, Chi Z, Xu J. Synthesis and characterization of novel optically active poly(ester-imide)s with high T
g
and good thermal stability. POLYM ADVAN TECHNOL 2013. [DOI: 10.1002/pat.3146] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tao Han
- Key Laboratory for Polymeric Composite and Functional Materials of the Ministry of Education, DSAPM Lab, Materials Science Institute, School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou China
| | - Yi Zhang
- Key Laboratory for Polymeric Composite and Functional Materials of the Ministry of Education, DSAPM Lab, Materials Science Institute, School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou China
| | - Qiaoying Cao
- Key Laboratory for Polymeric Composite and Functional Materials of the Ministry of Education, DSAPM Lab, Materials Science Institute, School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou China
| | - Siwei Liu
- Key Laboratory for Polymeric Composite and Functional Materials of the Ministry of Education, DSAPM Lab, Materials Science Institute, School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou China
| | - Zhenguo Chi
- Key Laboratory for Polymeric Composite and Functional Materials of the Ministry of Education, DSAPM Lab, Materials Science Institute, School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou China
| | - Jiarui Xu
- Key Laboratory for Polymeric Composite and Functional Materials of the Ministry of Education, DSAPM Lab, Materials Science Institute, School of Chemistry and Chemical Engineering; Sun Yat-sen University; Guangzhou China
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3
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Dai Z, Ye G, Pittman CU, Li T. Solution-phase synthesis and evaluation of tetraproline chiral stationary phases. Chirality 2012; 24:329-38. [DOI: 10.1002/chir.22001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Accepted: 10/31/2011] [Indexed: 11/07/2022]
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4
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Synthesis and characterization of thermoresponsive diblock copolymer bearing amino acid moieties via click reaction. Polym Bull (Berl) 2011. [DOI: 10.1007/s00289-011-0619-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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5
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Steric effects on the enantiodiscrimination of diproline chiral stationary phases in the resolution of racemic compounds. J Chromatogr A 2011; 1218:5498-503. [PMID: 21741656 DOI: 10.1016/j.chroma.2011.06.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 06/01/2011] [Accepted: 06/09/2011] [Indexed: 11/21/2022]
Abstract
Eight diproline chiral stationary phases with different end-capping groups were prepared and evaluated for the enantio-selective resolution of 41 racemic analytes. The end-capping group on the N-terminal of the peptide proved to be important as the chiral separation efficiency was decreased significantly without it. In general, increasing steric bulkiness near the N-terminal of diproline increases the enantioselectivity. Electronic structures of the end-capping groups are also important. One stationary phase with an adamantanecarbonyl capping group was found to provide both higher average separation and resolution factors than our previous leader. Three other stationary phases with 2-methylpropanoyl, cyclopropanecarbonyl and cyclobutanecarbonyl end capping groups were found to provide comparable average separation factor but higher resolution factors than our previous leader.
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6
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SYNTHESIS AND CHARACTERIZATION OF OPTICALLY ACTIVE BLOCK COPOLYMER WITH THERMO-RESPONSIVE CHARACTERISTIC VIA "CLICK" REACTION. ACTA POLYM SIN 2010. [DOI: 10.3724/sp.j.1105.2010.09237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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ISHIMOTO S, JINNO N, HASHIMOTO M, TSUKAGOSHI K. Separation of Optical Isomers in Capillary Chromatography Using a Poly(tetrafluoroethylene) Capillary Tube and an Aqueous-Organic Mixture Carrier Solution. ANAL SCI 2010; 26:641-3. [DOI: 10.2116/analsci.26.641] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Seiji ISHIMOTO
- Department of Chemical Engineering and Materials Science, Faculty of Science and Engineering, Doshisha University
| | - Naoya JINNO
- Department of Chemical Engineering and Materials Science, Faculty of Science and Engineering, Doshisha University
| | - Masahiko HASHIMOTO
- Department of Chemical Engineering and Materials Science, Faculty of Science and Engineering, Doshisha University
| | - Kazuhiko TSUKAGOSHI
- Department of Chemical Engineering and Materials Science, Faculty of Science and Engineering, Doshisha University
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8
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Lao W, Gan J. Evaluation of triproline and tri-α-methylproline chiral stationary phases. J Chromatogr A 2009; 1216:5020-9. [DOI: 10.1016/j.chroma.2009.04.063] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2009] [Revised: 04/17/2009] [Accepted: 04/21/2009] [Indexed: 10/20/2022]
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9
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ZHAO F, LIU Z, FENG L, SUN J, HU J. PREPARATION AND CHARACTERIZATION OF OPTICALLY ACTIVE AMPHIPHILIC BLOCK COPOLYMER. ACTA POLYM SIN 2009. [DOI: 10.3724/sp.j.1105.2009.00166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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N-Ethoxycarbonylation combined with (S)-1-phenylethylamidation for enantioseparation of amino acids by achiral gas chromatography and gas chromatography–mass spectrometry. J Chromatogr A 2008; 1214:151-6. [DOI: 10.1016/j.chroma.2008.10.068] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2008] [Revised: 10/05/2008] [Accepted: 10/15/2008] [Indexed: 11/23/2022]
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11
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Synthesis and characterization of new optically active poly(azo-ester-imide)s via interfacial polycondensation. Amino Acids 2008; 36:511-8. [PMID: 18563518 DOI: 10.1007/s00726-008-0113-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2008] [Accepted: 05/26/2008] [Indexed: 10/21/2022]
Abstract
N,N'-Pyromelliticdiimido-di-L-amino acids (1a-1d) were prepared from the reaction of pyromellitic dianhydride with the corresponding L-amino acids in a solution of glacial acetic acid/pyridine (3:2) at refluxing temperature. 4,4'-sulfonyl bis(4,1-phenylene) bis(diazene-2,1-diyl) diphenol, 4,4'-oxy bis(4,1-phenylene) bis(diazene-2,1-diyl) diphenol and 4,4'-methylene bis(4,1-phenylene) bis(diazene-2,1-diyl) diphenol, were prepared from 4,4'-diamino diphenyl sulfone, 4,4'-diamino diphenyl ether, 4,4'-diamino diphenyl methane, sodium nitrite and phenol following the general procedure of diazo coupling. Interfacial polycondensation method was used to prepare the corresponding poly(azo-ester-imid)s (PAEI(1-12)) in biphasic solution of water/dichloromethane. The resulting polymers (PAEIs) have been obtained in high yields having good inherent viscosities (0.32-0.57 dl g(-1)), optical activities and thermal stabilities.
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Gong XY, Dobrunz D, Kümin M, Wiesner M, Revell JD, Wennemers H, Hauser PC. Separating stereoisomers of di-, tri-, and tetrapeptides using capillary electrophoresis with contactless conductivity detection. J Sep Sci 2008; 31:565-73. [DOI: 10.1002/jssc.200700461] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Enantiomeric separation of alcohols and amines on a proline chiral stationary phase by gas chromatography. J Chromatogr A 2008; 1191:199-204. [PMID: 18262198 DOI: 10.1016/j.chroma.2008.01.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2007] [Revised: 01/16/2008] [Accepted: 01/18/2008] [Indexed: 11/20/2022]
Abstract
A new chiral stationary phase for gas chromatography was prepared by covalently attaching a diproline chiral selector that has proven to be effective in liquid chromatography to a methylhydrosiloxane-dimethylsiloxane copolymer. With this new chiral stationary phase for GC, racemic aromatic alcohols could be resolved without derivatization. Racemic aromatic and aliphatic amines could also be resolved after derivatization of the amino groups with trifluoroacetic anhydride or isopropyl isocyanate. On this stationary phase, the isopropyl isocyanate derivatives of amines showed higher enantioselectivity than the trifluoroacetic anhydride derivatives. In both the enantiomeric separations of alcohols and derivatized amines, the aromatic racemic analytes showed higher enantioselectivities than their aliphatic analogs. Some of the alpha-amino and alpha-hydroxy aromatic acids could also be separated after derivatization to N-trifluoroacetyl methyl esters for amino acids or O-trifluoroacetyl methyl esters for hydroxyl acids.
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Abstract
The article brings a comprehensive survey of recent developments and applications of high-performance capillary electromigration methods, zone electrophoresis, ITP, IEF, affinity electrophoresis, EKC, and electrochromatography, to analysis, preparation, and physicochemical characterization of peptides. New approaches to the theoretical description and experimental verification of electromigration behavior of peptides and to methodology of their separations, such as sample preparation, adsorption suppression, and detection, are presented. Novel developments in individual CE and CEC modes are shown and several types of their applications to peptide analysis are presented: conventional qualitative and quantitative analysis, purity control, determination in biomatrices, monitoring of chemical and enzymatical reactions and physical changes, amino acid and sequence analysis, and peptide mapping of proteins. Some examples of micropreparative peptide separations are given and capabilities of CE and CEC techniques to provide important physicochemical characteristics of peptides are demonstrated.
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Affiliation(s)
- Václav Kasicka
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
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15
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Ravelet C, Peyrin E. Recent developments in the HPLC enantiomeric separation using chiral selectors identified by a combinatorial strategy. J Sep Sci 2007; 29:1322-31. [PMID: 16894776 DOI: 10.1002/jssc.200600010] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Two kinds of chiral stationary phases (CSPs) can be distinguished: (i) the "conventional" CSPs for which the selectivity is not pre-determined and (ii) the CSPs which are characterized by a predictable elution order, depending on the target enantiomer used for the selection of the chiral selector. At the present time, three general methodologies have been described to create chiral selectors specifically designed against the racemate to resolve: the molecular imprinting technology, the production of antibodies and the combinatorial approach. The latter methodology involves two categories of procedures to develop CSPs: an approach from a small library of low-molecular weight selectors and an approach from a very large library of single-stranded oligonucleotides (DNA and RNA aptamers). In this review, the recent advances in the HPLC applications of the chiral selectors identified through these two combinatorial procedures are addressed.
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Affiliation(s)
- Corinne Ravelet
- Département de Pharmacochimie Moléculaire UMR 5063 CNRS, Institut de Chimie Moléculaire de Grenoble, France
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16
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The application of quasi-enantiomeric trianglamine macrocycles as chiral probes for anion recognition in ion trap ESI mass spectrometry. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.07.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Feng L, Hu J, Liu Z, Zhao F, Liu G. Preparation and properties of optically active poly(N-methacryloyl l-leucine methyl ester). POLYMER 2007. [DOI: 10.1016/j.polymer.2007.04.064] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Stair JL, White BR, Rowland A, Holcombe JA. Quantitative Determination of Single-Bead Metal Content from a Peptide Combinatorial Library. ACTA ACUST UNITED AC 2006; 8:929-34. [PMID: 17096583 DOI: 10.1021/cc060100m] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An electrothermal vaporizer inductively coupled plasma mass spectrometer (ETV-ICPMS) was used to quantitatively screen metals bound to single polystyrene (TentaGel) beads with immobilized oligopeptides. Tests were performed using ETV-ICPMS to screen a series of identical beads as well as a series of combinatorial library beads exposed to a multimetal solution composed of Mg2+, Mn2+, Ni2+, Cu2+, Cd2+, Eu2+, and Pb2+. The residual metal content remaining bound to the beads after acid extractions was also analyzed by solid sampling of the entire bead using oxygen ashing in the ETV. Nine beads (80 mesh, 0.25 mmol g(-1) nominal capacity) containing covalently attached polyaspartic acid (PLAsp; n = 20) showed metal extract concentrations in the range of 4-130 ng mL(-1). After normalizing by bead volume, the precision of capacity measurements in a single bead (7-14%) was primarily dictated by analysis error and contributions from bead diameter measurement with negligible contributions, surprisingly, from variations in site density from bead to bead. A sample combinatorial library of the sequence GXXGXXGXXGXX (X = cysteine, aspartic acid, or glutamic acid and G = glycine) (60 mesh, 0.25 mmol g(-1) nominal capacity) was also used to demonstrate the utility of this method. Metal extract concentrations ranged from 1 to 1300 ng mL(-1) with significant concentration variation between beads, indicating the individual selectivity on each bead. For these larger beads, analysis precision (i.e., capacity precision) was further improved to 3-10% due to the overall increase in bead metal content. Through metal extract determinations, ETV-ICPMS was shown to be a viable nondestructive tool for full metal characterization of "hit" sequences belonging to a combinatorial library.
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Affiliation(s)
- Jacqueline L Stair
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, USA
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19
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Babudri F, Colangiuli D, Di Bari L, Farinola GM, Hassan Omar O, Naso F, Pescitelli G. Synthesis and Chiroptical Characterization of an Amino Acid Functionalized Dialkoxypoly(p-phenyleneethynylene). Macromolecules 2006. [DOI: 10.1021/ma060764k] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francesco Babudri
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, CNR ICCOM, Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, and Dipartimento di Chimica e Chimica Ind.le, Università degli Studi di Pisa, via Risorgimento, 35, I-56126 Pisa, Italy
| | - Donato Colangiuli
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, CNR ICCOM, Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, and Dipartimento di Chimica e Chimica Ind.le, Università degli Studi di Pisa, via Risorgimento, 35, I-56126 Pisa, Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, CNR ICCOM, Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, and Dipartimento di Chimica e Chimica Ind.le, Università degli Studi di Pisa, via Risorgimento, 35, I-56126 Pisa, Italy
| | - Gianluca M. Farinola
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, CNR ICCOM, Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, and Dipartimento di Chimica e Chimica Ind.le, Università degli Studi di Pisa, via Risorgimento, 35, I-56126 Pisa, Italy
| | - Omar Hassan Omar
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, CNR ICCOM, Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, and Dipartimento di Chimica e Chimica Ind.le, Università degli Studi di Pisa, via Risorgimento, 35, I-56126 Pisa, Italy
| | - Francesco Naso
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, CNR ICCOM, Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, and Dipartimento di Chimica e Chimica Ind.le, Università degli Studi di Pisa, via Risorgimento, 35, I-56126 Pisa, Italy
| | - Gennaro Pescitelli
- Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, CNR ICCOM, Dipartimento di Chimica, Università degli Studi di Bari, via Orabona, 4, I-70126 Bari, Italy, and Dipartimento di Chimica e Chimica Ind.le, Università degli Studi di Pisa, via Risorgimento, 35, I-56126 Pisa, Italy
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Dong X, Dong J, Ou J, Zhu Y, Zou H. Capillary electrochromatography with zwitterionic stationary phase on the lysine-bonded poly(glycidyl methacrylate-co-ethylene dimethacrylate) monolithic capillary column. Electrophoresis 2006; 27:2518-25. [PMID: 16718648 DOI: 10.1002/elps.200500865] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A polymer-based neutral monolithic capillary column was prepared by radical polymerization of glycidyl methacrylate and ethylene dimethacrylate in a 100 mum id fused-silica capillary, and the prepared monolithic column was subsequently modified based on a ring opening reaction of epoxide groups with 1 M lysine in solution (pH 8.0) at 75 degrees C for 10 h to produce a lysine chemically bonded stationary phases in capillary column. The ring opening reaction conditions were optimized so that the column could generate substantial EOF. Due to the zwitterionic functional groups of the lysine covalently bonded on the polymer monolithic rod, the prepared column can generate cathodic and anodic EOF by varying the pH values of running buffer during CEC separation. EOF reached the maximum of -2.0 x 10(-8) m2v(-1)s(-1) and 2.6 x 10(-8) m2v(-1)s(-1) with pH of the running buffer of 2.25 and 10, respectively. As a consequence, neutral compounds, ionic solutes such as phenols, aromatic acids, anilines, and basic pharmaceuticals were all successfully separated on the column by CEC. Hydrophobic interaction is responsible for separation of neutral analytes. In addition, the electrostatic and hydrophobic interaction and the electrophoretic migration play a significant role in separation of the ionic or ionizable analytes.
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Affiliation(s)
- Xiaoli Dong
- Department of Chemistry, Xixi Campus, Zhejiang University, Hangzhou, China
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Ha PTT, Hoogmartens J, Van Schepdael A. Recent advances in pharmaceutical applications of chiral capillary electrophoresis. J Pharm Biomed Anal 2006; 41:1-11. [PMID: 16516428 DOI: 10.1016/j.jpba.2006.01.035] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2005] [Revised: 01/05/2006] [Accepted: 01/19/2006] [Indexed: 11/28/2022]
Abstract
This review article summarizes developments and applications of chiral capillary electrophoresis (CE) in the pharmaceutical field published from January 2004 to June 2005. Due to the tremendous number of publications, this article is aimed to focus on major developments in chiral separations and some selected applications rather than to provide a descriptive overview of all published papers. Valuable information is also collected from several excellent reviews published during this period. Developments are classified according to CE modes, namely capillary zone electrophoresis (CZE), micellar electrokinetic capillary chromatography (MEKC), microemulsion electrokinetic chromatography (MEEKC). In the CZE section, different types of chiral selectors including cyclodextrins, oligo- and polysaccharides, crown ethers, macrocyclic antibiotics, ligand exchange systems and proteins are described. Nonaqueous capillary electrophoresis is also included in this section. Coupling CE to MS is discussed in a separate part, followed by a summary of selected pharmaceutical applications of enantioselective CE. Finally, some conclusions are drawn and prospects of CE in chiral analysis are also drafted.
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Affiliation(s)
- Pham Thi Thanh Ha
- Laboratory of Pharmaceutical Chemistry and Drug Analysis, Faculty of Pharmaceutical Sciences, K.U. Leuven, Leuven, Belgium
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22
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Scriba GKE. Recent advances in peptide and peptidomimetic stereoisomer separations by capillary electromigration techniques. Electrophoresis 2006; 27:222-30. [PMID: 16315180 DOI: 10.1002/elps.200500446] [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] [Indexed: 11/06/2022]
Abstract
As the stereochemistry of peptides determines their physicochemical properties and biological activities, analytical methods able to discriminate between peptide stereoisomers are important especially with regard to pharmaceutical peptides and peptidomimetics. The present review summarizes recent developments in peptide and peptidomimetic stereoisomer separations by capillary electromigration techniques. The majority of separations were performed by CE while only few reports have been published on the subject of electrochromatography. In addition to systematic studies on the applicability of certain buffer additives and the evaluation of specific experimental conditions, there have been attempts to understand the mechanistic aspects of peptide stereoisomer separations as well as to analyze the structure of peptide-CD complexes.
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Affiliation(s)
- Gerhard K E Scriba
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Jena, Jena, Germany.
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