HPLC Columns

Astec CHIROBIOTIC™ Literature References

Astec Products | Technical Resources
  1. Macrocyclic Antibiotics as a New Class of Chiral Selectors for Liquid Chromatography, D. W. Armstrong, Y. Tang, S. Chen. Y. Zhou, C. Bagwell, J-R. Chen, Analytical Chemistry, Vol. 66, No. 9, 1473-1484 (1994).
  2. A Covalently Bonded Teicoplanin Chiral Stationary Phase for HPLC Enantioseparations, D. W. Armstrong, Y. Liu, K. H. Ekborgott, Chirality, 7, 474-497 (1995).
  3. Enantioresolution of Substitued 2-Methoxy-6-oxo-1,4,5,6-tetrahydropyridine-3- carbaonitriles on Macrocyclic Antibiotic and Cyclodextrin Stationary Phases, S. Chen, Y. Liu, D. W. Armstrong, P. Victory, B. Martinez-Teipel, J. of Liq. Chrom., 18(8), 1495-1507 (1995).
  4. Facile RPLC Enantioresolution of Native Amino-Acids and Peptides Using A Teicoplanin Chiral Stationary Phase, A. Berthod, Y. Liu, C. Bagwell, D. W. Armstrong, J. of Chrom. A, 731, 123-137 (1996).
  5. Separation of Enantiomers of 4-aryldihydropyrimidines by Direct Enantioselective HPLC. A Critical Comparison of Chiral Stationary Phases, O.P. Kleidernigg, C. O. Kappe, Tetrahedron: Asymmetry, Vol. 8, No. 12, 2057-2067 (1997).
  6. High-performance Liquid Chromatographic Separation of Enantiomers of Unusual Amino Acids on a Teicoplanin Chiral Stationary Phase, A. Peter, G. Torok, D. W. Armstrong, J. of Chromatogr. A, 793, 283-296 (1998).
  7. Stereochemical Analyses of Food Components, K. H. Ekborg-Ott, D.W. Armstrong, Chiral Separations: Application and Technology,. Ch. 9, 201-270 (1997), American Chemical Society, Washington, DC.
  8. Highly Enantioselective HPLC Separations Using the Covalently Bonded Macrocyclic Antibiotic, Ristocetin A, Chiral Stationary Phase, K. H. Ekborg-Ott, Y. Liu, D. W. Armstrong, Chirality, 10, 434-483 (1998).
  9. Enantiomeric Impurities in Chiral Catalysts, Auxiliaries and Synthons Used in Enantioselective Synthesis, D. W. Armstrong, J. T. Lee, L. W. Chang, Tetrahedron: Asymmetry 9, 2043-2064 (1998).
  10. Enantiomeric Impurities in Chiral Catalysts, Auxiliaries, Synthons and Resolving Agents. Part 2, D. W. Armstrong, L. He, T. Yu, J. T. Lee, Y. Liu, Tetrahedron: Asymmetry 10, 37- 60 (1999).
  11. The Evolution of Chiral Stationary Phases for Liquid Chromatography, D. W. Armstrong, Journal of the Chinese Chemical Society, 45, 581-590 (1998).
  12. Determination of the Enantiomers of Salbutamol and its 4-O-Sulphate Metabolites in Biological Matrices by Chiral Liguid Chromatography Tandem Mass Spectrometry, K. B. Joyce, A. E. Jones, R. J. Scott, R. A. Biddlecombe, S. Pleasance, Rapid Commun. Mass Spectrom. 12, 1899-1910 (1998).
  13. Determination of the Enantiomers of Albuterol in Human and Canine Plasma by Enantioselective High-Performance Liquid Chromatography on a Teicoplanin-Based Chiral Stationary Phase, K. M. Fried, P. Koch, I. W. Wainer, Chirality 10, 484-491 (1998).
  14. Enantiomeric Separation of Several Cyclic Imides on a Macrocyclic Antibiotic (Vancomycin) Chiral Stationary Phase Under Normal and Reversed Phase Conditions, H. Y. Aboul-Enein, V. Serignese,Chirality 10, 358-361 (1998).
  15. Plant and Soil Enantioselective Biodegradation of Racemic Phenoxyalkanoic Herbicides, J. M. Schneiderheinze, D. W. Armstrong, A. Berthod, Chirality 11, 330-337 (1999).
  16. Comparison of Enantioselective Separation of N-tert.-butyloxycarbonyl Amino Acids and Their Non-blocked Analogues on Teicoplanin-based Chiral Stationary Phase, E. Tesarova, A. Bosakova, V. Pacakova, J. of Chrom. A, 838, 121-129 (1999).
  17. Chiral Separations Performed by Enhanced Fluidity Liquid Chromatography on a Macrocyclic Antibioitc Chiral Stationary Phase, Q. Sun, S.V. Olesik, Anal. Chem. 71, 2139-2145 (1999).
  18. Chiral Separation of Enantiomers of Amino Acid Derivatives by HPLC on Vancomycin and Teicoplanin Chiral Stationary Phases, J. Lehotay, K. Hrobonová, J. Krupcík, J. Cizmárik, Pharmazie 53, 863-865 (1998)12.
  19. Effect of Selector Coverage and Mobile Phase Composition on Enantiomeric Separations with Ristocetin A Chiral Stationary Phases, K. H. Ekborg-Ott, X. Wang, D. W. Armstrong, Microchemical Journal 62, 26-49 (1999).
  20. Optimum Operating Conditions for Chiral Separations in Liquid Chromatography, R.P.W. Scott, T. E. Beesley, Analyst, 124, 713-719 (1999).
  21. Enantioseparation of Semisynthetic Ergo Alkaloids on Vancomycin and Teicoplanin Stationary Phases, E. Tesarova, K. Zaruba, M. Flieger, J. of Chrom. A, 844, 137-147 (1999).
  22. Quantitative Determination of Clenbuterol Enantiomers in Human Plasma by High-performance Liquid Chromatography Using the Macrocyclic Antibiotic Chiral Stationary Phase Teicoplanin, H. Y. Aboul-Enein and V. Serignese, Biomed. Chromatogr., 13, 520-524 (1999).
  23. Role of the Carbohydrate Moities in Chiral Recognition on Teicoplanin-Based LC Stationary Phases, Berthod, A., Chen, X., Kullman, J.P., Armstrong, D.W., Gasparrini, F., D’Acquarica, I., Villani, C., Carotti, A., Anal. Chem., 72, 1767-1780 (2000).
  24. Chiral Separations of Polar Compounds by Hydrophilic Interaction Chromatography with Evaporative Light Scattering Detection, Risley, D.S, Strege, M.A., Anal. Chem., 72, 1736-1739 (2000).
  25. Synthesis and Structure of Biologically Active Ferrocenylalkyl Polyfluoro Benzimidazoles, Snegur, L.V., Boev, V.I., Nekrasov, Y.S., Ilyin, M.M., Davankov, V.A., Starikova, Z.A., Yanovsky, A.I., Kolomiets, A.F., Babin, V.N., J. of Organometallic Chem., 580, 26-35 (1999).
  26. Liquid Chromatographic/Atmospheric Pressure Chemical Ionization Tandem Mass Spectrometry Enantiomeric Separation of dl-threo-Methylphenidate, (Ritalin®) Using a Macrocyclic Antibiotic as the Chiral Selector, Ramos, L., Bakhtiar, R., Majumdar, T., Hayes, M., Tse, F., Rapid Commun. Mass Spectrom., 13, 2054-2062 (1999).
  27. Coupling Chiral Stationary Phases as a Fast Screening Approach for HPLC Method Development, Wang, A. X., Lee, J. T., Beesley, T.E., LC·GC, 18(6), 626-639 (2000).
  28. High-Throughput Chiral Liquid Chromatography/Tandem Mass Spectrometry, Bakhtiar, R., Tse, F.L.S., Rapid Commun. Mass Spectrom., 14, 1128-1135 (2000).
  29. Macrocyclic Antibiotics as Effective Chiral Selectors for Enantiomeric Resolution by Liquid Chromatography and Capillary Electrophoresis, Aboul-Enein, H. Y., Ali, I., Chromatographia, Vol. 52, No. 11/12, (December 2000).
  30. Use of Atmospheric Pressure Ionization Mass Spectrometry in Enantioselective Liquid Chrom atography, Bakhtiar, R., Ramos, L., Tse, F. L. S., Chirality 13, 63-74 (2001).
  31. Enantiomeric High-Performance Liquid Chromatographic Separation of b-Substituted Tryptophan Analogues, Török, G., Peter, A., Vékes, E, Sápi, J., Laronze, M. Laronze, J.-Y., Armstrong, D. W., Chromatographia Supplement, Vol. 51 ,S165-S174 (2000).
  32. Chiral Separation by Simultaneous Use of Vancomycin as Stationary Phase Chiral Selector and Chiral Mobile Phase Additive, Sun, Q., Olesik, S. V., J. of Chrom. B, 745, 159-166 (2000).
  33. Simultaneous Analysis of Enantiomeric Composition of Amino Acids and N-Acetyl-Amino Acids by Enantioselective Chromatography, Yu, Y-P., Wu, W-H., Chirality 13:231-235 (2001).
  34. Modification of the Chiral Bonding Properties of Teicoplanin Chiral Stationary Phase by Organic Additives. HPLC Separation of Enantiomers of Alkoxysubstituted Esters of Phenylcarbamic Acid, J. Lehoytay, K. Hrobonová, J. Cizmárik, M. Renèová, D. W. Armstrong, J. Liq. Chrom. & Rel. Technol., 23(5), 609-624 (2001).
  35. Validation of a Chiral Capillary Electrochromatographic Method for Metoprolol on a Teicoplanin Stationary Phase, Carlsson, E., Wikström, H., Owens, P.K., Chromatographia 53, April No. 7/8, 419-424 (2001).
  36. Chiral Speciation and Determination of Selenomethionine Enantiomers in Selenized Yeast by HPLC-ICP-MS Using a Teicoplanin-based Chiral Stationary Phase, S. Pérez Méndez, E. Blanco González, A. Sanz Medel, J. Anal. At. Spectrom. 15, 1109-1114 (2000).
  37. Dansyl Amino Acid Enantiomer Separation on a Teicoplanin Chiral Stationary Phase: Effect of Eluent pH, Peyrin, E., Ravelet, C., Nicolle, E., Villet, A., Grosset, C., Ravel, A., Alary, J., J. of Chrom. A, 923, 37-43 (2001).
  38. Chiral Liquid Chromatography Tandem Mass Spectrometry in the Determination of the Configuration of 2-Hydroxyglutaric Acid in Urine, Rashed, M.S., AlAmoudi, M., Aboul-Enein, H.Y., Biomedical Chromatogr. 14, 317-320 (2000).
  39. Interactions Between D,L Dansyl Amino Acids and Immobilized Teicoplanin: Study of the Dual Effect of Sodium Citrate on Chiral Recognition, Peyrin, E., Ravel, A., Grosset, C., Villet, A., Ravelet, C., Nicolle, E., Alary, Chromatographia, 53, 645-650 (2001).
  40. Simultaneous Analysis of Underivatized Chiral Amino Acids by Liquid Chromatography – Ionspray Tandem Mass Spectrometry Using a Teicoplanin Chiral Stationary Phase, Petritis, K., Valleix, A., Elfakir, C., Dreux, M., J. of Chrom. A, 913, 331-340 (2001).
  41. Retention and Selectivity of Teicoplanin Stationary Phases After Copper Complexation And Isotopic Exchange, Berthod, A., Valleix, A., Tizon, V., Leonce, E., Caussignac, C., Armstrong, D. W., Anal. Chem. 73, 5499-5508 (2001).
  42. Direct Chiral Separation of Unnatural Amino Acids by High Performance Liquid Chromatography on a Ristocetin A-Bonded Stationary Phase, Török, G., Péter, A., Armstrong, D.W., Tourwé, D., Tóth, G., Sápi, J., Chirality, 13, 648- 656 (2001).
  43. High-performance Liquid Chromatographic Enantioseparation of b-amino Acids, Péter, A., Lázár, L., Fülöp, F., Armstrong, D.W., J. of Chrom. A., 926, 229-238 (2001).
  44. Quantification of Methylphenidate (Ritalin®) in Rabbit Fetal Tissue Using a Chiral Liquid Chromatography/Tandem Mass Spectrometry Assay, Bakhtiar, R., Ramos, L., Tse, F.L.S., Letter to the Editor, Rapid. Commun. In M ass. Spectrom., 16, 81-83 (2002).
  45. Analysis of the Band Profiles of the Enantiomers of Phenylglycine in Liquid Chromatography on Bonded Teicoplanin Columns Using the Stochastic Theory of Chromatography, Jander, P., Backovská, V., Felinger, A., J. of Chrom. A., 919, 67-77 (2001).
  46. Enantiomeric Separation and Quantification of Fluoxetine (Prozac®) in Human Plasma by Liquid Chromatography/Tandem Mass Spectrometry Using Liquid-liquid Extraction in 96-well Plate Format, Shen, Z., Wang, S., Bakhtiar, R., Rapid Commun. Mass Spectrom., 16, 332-338 (2002).
  47. Enantiomeric Separation of Some Cyclic Ketones and Dioxalene Derivatives by Chiral SFC, Toribio, L., David, F., Sandra, P., Química Analytíca, 18, 269-273 (1999).
  48. Sulphostin, A Potent Inhibitor for Dipeptidyl Peptidase IV from Streptomyces sp. MK251-43F3, Akiyama, T., Abe, M., Harada, S., Kojima, F., Sawa, R., Takahashi, Y., Naganawa, H., Homma, Y., Hamada, M., Yamaguchi, A., Aoyagi, T., Muraoka, Y. Takeuchi, T., The Journal of Antibiotics, 54(9), 744-746 (2001).
  49. Chiral Discrimination of Phenoxypropionic Acid Herbicides on Teicoplanin Phase: Effect of Mobile Phase Modifier, Guillaume, Y.C., Truong, T.T., Millet, J., Nicod, L., Guinchard, C., Robert, J.F., Thomassin, M., Chromatographia, 55, No. 3/4, 143-148 (2002).
  50. Chiral Resolution of Flurbiprofen and Ketoprofen Enantiomers by HPLC on a Glycopeptide-Type Column Chiral Stationary Phase, Péhourcq, F., Jarry, C., Bannwarth, B., Biomed. Chromatogr. 15, 217-222 (2001).
  51. HPLC Enantioselective Separation of Aromatic Amino and Hydrazino Acids on a Teicoplanin Stationary Phase and the Enantiomeric Purity Determination of L-Isomers Used as Drugs, Chirality 11, 394-403 (1999).
  52. Effect of the Mobile Phase on the Retention Behavior of Optical Isomers of Carboxylic Acids and Amino Acids in Liquid Chromatography on Bonded Teicoplanin Columns, Jandera, P., Skavrada, M., Klemmova, K., Backovska, V., Guiochon, G., J. of Chrom. A., 917, 123-133 (2001).
  53. Determination of L-Pipecolic Acid in Plasma Using Chiral Liquid Chromatography-Electrospray Tandem Mass Spectrometry, Rashed, M.S., Al-Ahaidib, L.Y., Aboul-Enein, H.Y., Al-Amoudi, M. Jacob, M., Clinical Chemistry 47:12, 2124-2130 (2001).
  54. Chiral Liquid Chromatography Tandem Mass Spectrometry in the Determination of the Configurations of Glyceric Acid in Urine of Patients with D-glyceric and L-glyceric Acidurias, Rashed, M.S., Aboul-Enein, H.Y., AlAmoudi-M., Jakob, M., Al-Ahaideb, L.Y., Abbad, A., Shabib, S., Al-Jishi, E., Biomed. Chromatogr. 16, 191-198 (2002).
  55. Enantiomeric Separation of Metoprolol and a-Hydroxymetoprolol by Liquid Chromatography and Fluorescence Detection Using a Chiral Stationary Phase, Mistry, B., Leslie, J. L., Eddington, N.D., J. of Chromatogr. B, 758, 153-161 (2001).
  56. Enantioseparation by HPLC of Imino Acids on Macrocyclic Glycopeptide Stationary Phases and as their (S)-N-(4-Nitrophenoxycarbonyl)-phenylalanine Methoxyethyl Ester Derivatives, Péter, A., Armstrong, D. W.,, Tourwé, D., Chromatographia, 56, Suppl. S-41-S47 (2002).
  57. Use of Online-Dual-Column Extraction in Conjunction with Chiral Liquid Chromatography Tandem Mass Spectrometry for Determination of Terbutaline Enantiomers in Human Plasma, Xia, Y-Q, Liu, D.Q., Bakhtiar, R., Chirality 14: 742-749 (2002).
  58. Separation of Chiral Sulfoxides by Liquid Chromatography Using Macrocyclic Glycopeptide Chiral Stationary Phases, Berthod, A., Xiao, T. L., Liu, Y., Jenks, W.S., Armstrong, D.W., J. of Chromatogr. A, 955, 53-69 (2002).
  59. High-performance Liquid Chromatographic and Capillary Electrophoretic Enantioseparation of Plant Growth Regulators and Related Indole Compounds Using Macrocyclic Antibiotics as Chiral Selectors, Hui, F., Ekborg-Ott, K.H., Armstrong, D.W., J. of Chromatogr. A, 906, 91-103 (2001).
  60. Composition and Chirality of Amino Acids in Aerosol/Dust from Laboratory and Residential Enclosures, Armstrong, D.W., Kullman, J.P., Chen, X., Rowe, M., Chirality 13: 153-158 (2001).
  61. Study of the Mechanism of Enantioseparation. I. Chiral Analysis of Alkylamino Derivatives of Aryloxypropanols by HPLC Using Macrocyclic Antibiotics as Chiral Selectors, Hrobonova, K., Lehotay, J., Cizmarikova, R., Armstrong, D.W., J. Liq. Chrom. & Rel. Technol., 25(15), 2225-2237 (2001).
  62. tudy of Local Anaesthetics. CLVIII. Chromatographic Separation of Some Derivatives of Substituted Phenylcarbamic Acid on a Vancomycin-Based Stationary Phase, Iungelova, J., Lehotay, J., Hrobonova, K., Cimarik, J., Armstrong, D.W., J. Liq. Chrom. & Rel. Technol., 25(2), 299-312 (2002).
  63. Chiral Resolution of Clenbuterol, Cimaterol, and Mabuterol on CHIROBIOTIC V, T and TAG Columns, Aboul-Enein, H. Y., Imran, A., J. Sep. Sci. 25, 851-855 (2002).
  64. Vancomycin Dimerization and Chiral Recognition Studied by High-Performance Liquid Chromatography, Slama, I., Dufresne, C., Jourdan, E., Fahrat, F., Villet, A., Ravel, A., Grosset, C. and Peyrin, E., Anal. Chem.74, 5205-5211 (2002).
  65. Study of Mechanism of Enantioseparation. III. The Influence of Carbohydrate Moieties of Teicoplanin-bonded Chiral Stationary Phase on the Separation of Some Derivates of Phenylcarbamic Acid, Rojkovicova, T., Lehotay, J., Dungelova, J., Cizmarik, J., Armstrong, D. W., J. of Liq. Chrom. & Rel. Tech., Vol. 25, No. 18, 2723-2738 (2002).
  66. Chiral Resolution of Cromakalim by HPLC on Teicoplanin Aglycon Chiral Stationary Phases, Aboul-Enein, H.Y., Ali, I., J. of Liq. Chrom. & Related Tech., Vol. 25, Nos. 13-15, 2337-2344 (2002).
  67. Enantiomeric Separation of an AMPA Antagonist Using a CHIROBIOTIC T Column with HPLC and Evaporative Light-Scattering Detection, Guisbert, A. L., Sharp, V.S., Peterson, J.A., Risley, D.S., J. Liq. Chrom. & Rel. Technol., 23(7), 1019-1028 (2000).
  68. Design, Synthesis, and Pharmacological Characterization of (+)-2-Aminobicyclo[3.1.0]hexane-2,6-dicarboxylic Acid (LY354740): A Potent, Selective, and Orally Active Group 2 Metabotropic Glutamate Receptor Agonist Possessing Anticonvulsant and Anxiolytic Properties, Monn, J.A., Valli, M. J., Massey, S.M., Wright, R.A., Salhoff, C.R., Johnson, B.G., Howe, T., Alt, C. A., Rhodes, G.A., Robey, R.L., Griffey, K.R., Tizzano, J.P., Kallman, M.J., Helton, D.R., Schoepp, D.D., J. Med. Chem., 40, 528-537 (1997).
  69. In Vitro Study of Enzymatic Hydrolysis of Diperodon Enantiomers in Blood Serum by Two-dimensional C, Hrobonova, K., Lehotay, J., Cizmarik, J., Armstrong, D.W., Journal of Pharmaceutical and Biomedical Analysis, 30, 875-880 (2002).
  70. Super/Subcritical Fluid Chromatography Chiral Separations with Macrocyclic Glycopeptide Stationary Phases, Liu, Y., Berthod, A., Mitchell, C.R., Xiao, T.L., Zhang, B., Armstrong, D.W., J. of Chrom. A 978, 185-204 (2002).
  71. A Comparison of the Direct and Indirect LC Methods for Separating Enantiomers of Unusual Glycine and Alanine Amino Acid Analogues, Peter, A., Vekes, E., Gera, L., Stewart, J.M., Armstrong, D.W., Chromatographia Supple. 56, S-79-S89 (2002).
  72. Column Selection and Method Development for the Determination of the Enantiomeric Purity of Investigational Non-Nucleoside Reverse Transcriptase Inhibitors, Aubry, A-F, Sebastian, D.S., Williams, R.C. Boucher, R.J. Chirality 13, 193-198 (2001).
  73. Enantioselective Analysis of (R)- and (S)-Atenolol in Urine Samples by a High-Performance Liquid Chromatography Column-Switching Setup, Lamprecht, G., Kraushofer, T., Stoschitzky, K., Lindner, W., J. of Chrom. B, 740, 219-226 (2000).
  74. Separation of Enantiomers of Some 1,4-Piperazine Derivatives of Aryloxy-Aminopropanols on a Vancomycin Chiral Stationary Phase, Lehotay, J., Hrobonova, K., Cizmarik, J., Celkova, H., Pharmazie 54, 743-745 (1999).
  75. Comparison of Two Different Approaches of Sample Pretreatment for Stereoselective Determination of (R,S)-Propranolol in Human Plasma, Misl'anova, C., Stefancova, A., J. Trace and Microprobe Techniques, 19(1), 173-170 (2001).
  76. Determination of (+) and (-)-Bromoisovalerylurea in Sera of Overdosed Subjects, Nishikawa, T., Kamijo, Y., Kondo, R., Sugie, H., Kurihara, K., Okuda, T., Matsumoto, N., Okada, Y., Ohtani, H., J. of Analytical Toxicology, Vol. 24, 691-695, Nov./Dec. (2000).
  77. Direct High-Performance Liquid Chromatographic Determination of the Enantiomeric Purity of Levodopa and Methyldopa: Comparison with Pharmacopoeial Polarimetric Methods, Dolezalova, M., Tkaczykova, M., J. of Pharmaceutical and Biomedical Analysis, 19, 555-567 (1999).
  78. High-Performance Liquid Chromatographic Separation of the Enantiomers of Unusual a-Amino Acid Analogues, Peter, A., Olajos, E., Casimir, R., Tourwe, D., Broxterman, Q.B., Kaptein, B., Armstrong, D.W., J. of Chrom. A., 871, 105-113 (2000).
  79. Hybridation of Different Chiral Separation Techniques with ICP-MS Detection for the Separation and Determination of Selenomethionine Enantiomers: Chiral Speciation of Selenized Yeast, Mendez, S.P., Gonzalez, E.B., Sanz-Medel, A., Biomed. Chromatogr. 15, 181-188 (2001).
  80. Resolution of Chiral Thiol Compounds Derivatized with N-(1-Pyrenyl)-Maleimide and ThiogloÔ3, Kullman, J.P., Yu, T., Chen, X., Neal, R., Ercal, N., Armstrong, D.W., J. Liq. Chrom. & Rel. Technol., 23(13), 1941-1952 (2000).
  81. First Asymmetric Synthesis of Ch iral b-Iodo Baylis-Hillman Esters Via Tandem 1,4-Conjugate Addition/Carbonyl Coupling Reactions, Xu, X., Chen, D., Wei, H-X., Li, G., Xiao, T.L., Armstrong, D.W., Chirality, 15, 139-142 (2003).
  82. Stereoselective HPLC-Assay for Citalopram and Its Metabolites, Zheng, Z., Jamour, M. Klotz, U., Therapeutic Drug Monitoring, 22, 219-224 (2000).
  83. Automated Online Dual-column Extraction Coupled with Teiocoplanin Stationary Phase for Simultaneous Determination f (R) - and (S)-propranolol in Rat Plasma Using Liquid Chromatography - Tandem Mass Spectrometry, Xia, Y-Q, Bakhtiar, R., Franklin, R.B., J. of Chromatogr. B, 788, 317-329 (2003).
  84. Quantification of Methylphenidate in Rat, Rabbit and Dog Plasma Using a Chiral Liquid-Chromatography/Tandem Mass Spectrometry Method, Application to Toxicokinetic Studies, Bakhtiar, R., Ramos, L., Tse, F.L.S., Analytica Chimica Acta 469, 261-272 (2002).
  85. Effect of Temperature on Retention of Enantiomers of b-methyl Amino Acids on a Teicoplanin Chiral Stationary Phase, Péter, A., Török, G., Armstrong, D.W., Tóth, G., Tourwé, D., J. of Chromatogr. A., 828, 177-190 (1998).
  86. Enantiomeric and Diastereomeric High-performance Liquid Chromatographic Separation of Cyclic b-substituted a-amino Acids on a Teicoplanin Chiral Stationary Phase, Schlauch, M., Frahm, A.W., J. of Chromatogr. A, 868, 197-207 (2000).
  87. Direct Separation of Captopril Diastereoisomers Including their Rotational Isomers by
    RP-LC Using a Teicoplanin Column, Owens, P.K., Svensson, L.A., Vessman, J., J. Pharm. Biomed. Anal. 25, 453-464 (2001).
  88. Effects of Temperature on Retention of Chiral Compounds on a Ristocetin A Chiral Stationary Phase, Péter, A., Vékes, E., Armstrong, D.W., J. of Chromatogr. A, 958, 89-107 (2002).
  89. LC-MS Method for the Determination of Albuterol Enantiomers in Human Plasma Using Manual Solid-Phase Extraction and a Non-Deuterated Internal Standard, Jacobson, G.A., Chong, F.V., Davies, N.W., J. of Pharm. and Biomed. Analysis, 31, 1237-1243 (2003).
  90. Comparison of Enantioseparation of Selected Benzodiazepine and Phenothiazine Derivatives on Chiral Stationary Phases Based on β-cyclodextrin and Macrocyclic Antibiotics, Tesarova, E., Bosakova, Z., J. Sep. Sci., 26, 661-668 (2003).
  91. Separation of Enantiomers of Substituted Dihydrofurocoumarins by HPLC Using Macrocyclic Glycopeptide Chiral Stationary Phases, Xiao, T.L., Rozhkov, R.V., Larock. R.C., Armstrong, D.W., Anal. Bioanal. Chem. 377, 639-654 (2003).
  92. HPLC Enantiomeric Resolution of Phenyl Isothiocyanated Amino Acids on Teicoplainin- Bonded Phase Using an Acetonitrile-Based Mobile Phase: A Structural Consideration, Chen, S., J. of Liq. Chrom. & Related Tech. Vol. 26, No. 20, 3475- 3495 (2003).
  93. Enantioselective Determination of Arotinolol in Human Plasma by HPLC Using Teicoplanin Chiral Stationary Phase, Biomed. Chromatogr. 17, 453-457 (2003).
  94. Assignment of Absolute Configuration of a Chiral Phenyl-Substituted Dihydrofuroangelicin, Pescitelli, G., Berova, N., Xiao, T.L., Rozhkov, R.V., Larock, R.C., Armstrong, D.W., Org. Biomol. Chem., 1, 1-6 (2003).
  95. Reanalysis of Chiral Discrimination of Phenoxypropionic Acid Herbicides on a Teicoplanin Phase Using a Bi-Langmuir Approach, Andre, C., Guillaume, Y.C., Chromatographia, 58, August (No. 3/4) 201-206 (2003).
  96. Absolute Stereochemistry of Dihydrofuroangelicins Bearing C-8 Substituted Double Bonds: A Combined Chemical/Exciton Chirality Protocol, Tanaka, K., Pescitelli, G., Di Bari, L., Xiao, T.L., Nakanishi, K., Armstrong, D.W., Berova, N., Org. Biomol. Chem., 2, 48-58 (2004).
  97. Validation of a Chiral HPLC Assay for (R)-Salbutamol Sulfate, Halabi, A., Ferrayoli, C., Palacio, M., Dabbene, V., Palacios, S., J. of Pharm. & Biomed. Analysis, 34, 45-51 (2004).
  98. Evaluation of Generic Chiral Liquid Chromatography Screens for Pharmaceutical Analysis, Andersson, M.E., Aslan, D., Clark, A., Roeraade, J., Hagman, G., J. of Chromatogr. A, 1005, 83-101 (2003).
  99. Direct and Indirect High Performance Liquid Chromatographic Enantioseparations of ?-Amino Acids, P. Antal, Arki, A., Vekes, E., Tourwe, D., Fulop, F., Armstrong, D.W., J. of Chromatogr. A, 1031, 171-178 (2004).
  100. Comparison of the Separation Efficiencies of Chirobiotic T and TAG Columns in the Separation of Unusual Amino Acids, , P. Antal, Arki, A., Forro, E., Tourwe, D., Fulop, F., Armstrong, D.W., J. of Chromatogr. A, 1031, 159-170 (2004).
  101. Transforming Chiral Liquid Chromatography Methodologies into More Sensitive Liquid Chromatography – Electrospray Ionization Mass Spectrometry Without Losing Enantioselectivity, Desai, M.J., Armstrong, D.W., J. of Chromatogr. A, 1035, 203-210 (2004).
  102. Analysis of Native Amino Acid and Peptide Enantiomers by High-Performance Liquid Chromatography/Atmospheric Pressure Chemical Ionization Mass Spectrometry, Desai, M.J., Armstrong, D.W., J. Mass Spectrom. 39, 177-187 (2004).
  103. Analysis of Derivatized and Underivatized Theanine Enantiomers by High- Performance Liquid Chromatography/Atmospheric Pressure Ionization-Mass Spectrometry, Desai, M.J., Armstrong, D.W., Rapid Commun. Mass Spectrom., 18, 251-256 (2004).
  104. LC Determination of the Enantiomeric Purity of L-Arginine Using a Teicoplanin Chiral Stationary Phase, Aboul-Enein, H.Y., Hefnawy, M.M., Hoenen, H., J. of Liquid. Chrom. & Related Tech., 27, No. 11, 1681-1693 (2004).
  105. Temperature and Enantioseparation by Macrocyclic Glycopeptide Chiral Stationary Phases, A. Berthod, He. B.L., Beesley, T.E., J. of Chromatogr. A, 1060, 205-214 (2004).
  106. Enantio- and Chemo-selective HPLC Separations by Chiral-Achiral Tandem-Columns Approach: The Combination of CH IROBIOTIC TAG and SCX Columns for the Analysis of Propionyl Carnitine and Related Impurities, D’Acquarica, I., Gasparrini, F., Giannoli, B., Badaloni, E., Galletti, B., Giorgi, F., Tinti, M.O., Vigevani, A., J. of Chromatogr. A, 1061, 167-173 (2004).
  107. Comparative Study of the Instrumental Couplings of High Performance Liquid Chromatography with Microwave-Assisted Digestion Hydride Generation Atomic Fluorescence Spectrometry and Inductively Coupled Plasma Mass Spectrometry for Chiral Speciation of Selenomethionine in Breast and Formula Milk, Gomez-Ariza, J.L., Bernal-Daza, V., Villegas-Portero, M.J., Analytical Chimica Acta 520, 229-235 (2004).
  108. Comparison of the Chiral Separation of Amino-Acid Derivatives by a Teicoplanin and RN-?-CD CSPs Using Waterless Mobile Phases: Factors That Enhance Resolution, Chen. S., Ward, T., Chirality 16:318-330 (2004).
  109. Chiral Resolution of Clenbuterol, Cimaterol, and Mabuterol on Chirobiotic V, T, and TAG Columns, Aboul-Enein, H.Y., Ali, I., J. Sep. Sci. 25, 851-855 (2002).
  110. Use of Native and Derivatized Cyclodextrin Based and Macrocyclic Glycopeptide Based Chiral Stationary Phases for the Enantioseparation of Pterocarpans by HPLC, Warnke, M.M., Mitchell, C.R., Rozhkov, R.V., Emrich, D.E., Larock, R.C., Armstrong, D.W., J. of Liq. Chromatogr. & Rel. Tech., 28, 823-834 (2005).
  111. Direct High-performance Liquid Chromatographic Separation of Unusual Secondary Amino Acids and a Comparison of the Performances of CHIROBOTIC T and TAG Columns, Peter, A., Torok, R., Armstrong, D.W., J, of Chromatogr. A, 1057, 229-235 (2004).
  112. Methotrexate Determination in Pharmaceuticals by Enantioselective HPLC, Abd El-Hady, D., Abo El-Maali, N., Gotti, R., Bertucci, C., Mancini, F., Andrisano, V., J. of Pharm. & Biomed. Analysis 37, 919-925 (2005).
  113. Analysis of Benidipine Enantiomers in Human Plasma by Liquid Chromatography – Mass Spectrometry Using a Macrocyclic Antibiotic (Vancomycin) Chiral Stationary Phase Column, Kang, W., Lee, D-J, Liu, K-H, Sunwoo, Y.E., Kwon, K, Cha, I-J, S hin, J-G, J. of Chromatogr. B, 814, 75-81 (2005).
  114. Selective Separations of Peptides with Sequence Deletions, Single Amino Acid Polymorphisms, and/or Epimeric Centers Using Macrocyclic Glycopepptide Liquid Chromatography Stationary Phases, Zhang, B., Soukup, R., Armstrong, D.W., J. of Chromatogr. A., 1053, 89-99 (2004).
  115. Chiral Liquid Chromatography-Tandem Mass Spectrometric Methods for Stereoisomeric Pharmaceutical Determinations, Chen, J., Korfmacher, W.A., Hsieh, Y., J. of Chromatogr. B, 820, 1-8 (2005).
  116. Chiral Analysis of Butaclamol Enantiomers in Human Plasma by HPLC Using a Macrocyclic Antibiotic (Vancomycin) Chiral Stationary Phase and Solid Phase Extraction, Aboul-Enein, H.Y., Hefnawy, M.M., Chirality 16, 147-152 (2004).
  117. Evaluation of Ethoxynonafluorobutane as a Safe and Environmentally Friendly Solvent for Chiral Normal-Phase LC-Atmospheric Pressure Chemical Ionization/Electrospray Ionization-Mass Spectrometry, Ding, J., Desai, M., Armstrong, D.W., J. of Chromatogr. A, 1076, 34-43 (2005).