Mechanistic Approaches of PHE and PPF Columns for Separation of Rasberry Ketone and Caffeine

References

• Holding, S.; Davies, J. Chromatography: Liquid Mechanisms: Size Exclusion Chromatography. In Encyclopedia of Separation Science; Wilson, I. D. Ed.; Elsevier: The Netherlands, 2000.
   Google Scholar
• McCalley, D. V. Study of the Selectivity, Retention Mechanisms and Performance of Alternative Silica-Based Stationary Phases for Separation of Ionised Solutes in Hydrophilicinteraction Chromatography. J. Chromatogr. A 2010, 1217, 3408–3417.
   PubMed Web of Science ®Google Scholar
• Stevenson, P. G.; Fairchild, J. N. Retention Mechanism Divergence of a Mixed Mode Stationary Phase for High Performance Liquid Chromatography. J. Chromatogr. A 2011, 1218, 1822–1827.
   PubMed Web of Science ®Google Scholar
• Soukup, J.; Jandera, P. The Effect of Temperature and Mobile Phase Composition on Separation Mechanism of flavonoid Compounds on Hydrosilated Silica-Based Columns. J. Chromatogr. A 2012, 1245, 98–108.
   PubMed Web of Science ®Google Scholar
• Zhang, X.; Chen, S.; Han, Q.; Ding, M. Preparation and Retention Mechanism Study of Graphene and Graphene Oxide Bonded Silica Microspheres as Stationary Phases for High Performance Liquid Chromatography. J. Chromatogr. A 2013, 1307, 135–143.
   PubMed Web of Science ®Google Scholar
• Moldoveanu, S. C.; David, V. Retention Mechanisms in Different HPLC Types. In Essentials in Modern HPLC Separations; Moldoveanu, S. and David, V. Eds.; Elsevier: The Netherlands, 2013.
   Google Scholar
• Jovanovic, M.; Stojanovic, B. J. Thorough Investigation of the Retention Mechanisms and Retention Behavior of Amides and Sulfonamides on Amino Column in Hydrophilic Interaction Liquid Chromatography. J. Chromatogr. A 2013, 1301, 27–37.
   PubMed Web of Science ®Google Scholar
• Ito, Y. pH-Zone-Refining Counter-Current Chromatography: Origin, Mechanism, Procedure and Applications. J. Chromatogr. A 2013, 1271, 71–85.
   PubMed Web of Science ®Google Scholar
• Haslam, D. W.; James, W. P. Obesity. Lancet. 2005, 366, 1197–209.
   PubMed Web of Science ®Google Scholar
• Rains, T. M.; Agarwal, S.; Maki, K. C. Antiobesity Effects of Green Tea Catechins: A Mechanistic Review. J. Nutrit. Biochem. 2011, 22, 1–7.
   PubMed Web of Science ®Google Scholar
• Westerterp-Plantenga, M. S. Green Tea Catechins, Caffeine and Body-Weight Regulation. Physiol. & Behav. 2010, 100, 42–46.
   PubMed Web of Science ®Google Scholar
• Huang, Y. W.; Liu, Y.; Dushenkov, S.; Ho, C. T. Anti-Obesity Effects of Epigallocatechin-3-Gallate, Orange Peel Extract, Black Tea Extract, Caffeine and Their Combinations in a Mouse Model. J. Funct. Foods 2009, 1, 304–9.
   Web of Science ®Google Scholar
• Prodan, M., Gere-Paszti, E., Farkes, O., Forgacs, E. Validation and Simultaneous Determination of Paracetamol and Caffeine in Pharmaceutical Formulations by RP-HPLC. Chem. Anal. 2003, 48, 901.
   Web of Science ®Google Scholar
• Pavlova, V.; Petrovska, S. J. Simultaneous Determination of Amphetamine, Methamphetamine, and Caffeine in Seized Tablets by High-Performance Liquid Chromatography. Acta Chromatogr. 2007, 18, 157–167.
   Web of Science ®Google Scholar
• Mario, A.; Gertrud, M. Simultaneous Determination of Caffeine, Ergotamine, and Metamizol in Solid Pharmaceutical Formulation by HPTLC–UV-FLD with Mass Confirmation by Online HPTLC–ESI-MS. Chromatographic Sci. 2007, 45, 251–255.
   PubMed Web of Science ®Google Scholar
• Sonali, S. B.; Sandip, B. B. Developing a Model for Analysis of Uncertainties in Prediction of Floods. J. Adv. Sci. Res. 2012, 3, 73–78.
   Google Scholar
• The United State Pharmacopeia. 24th Ed. United States Pharmacopeial Convention: Rockville, MD, 2000.
   Google Scholar
• Yang, M.; Fazio, S.; Munch, D.; Drumm, P. Impact of Methanol and Acetonitrile on Separations Based on π–π Interactions with a Reversed-Phase Phenyl Column. J. Chromatogr. A 2005, 1097, 124–129.
   PubMed Web of Science ®Google Scholar
• Ali, I.; Haque, A.; Saleem, K. Separation and Identification of Curcuminoids in Turmeric Powder by HPLC using Phenyl Column. Anal. Methods 2014, 6, 2526–2536.
   Web of Science ®Google Scholar
• Hunter, C. A.; Sanders, K. M. The Nature of π-π Interactions. J. Am. Chem. Soc. 1990, 112, 5525–5534.
   Web of Science ®Google Scholar
• Pirkle, W. H.; Liu, Y. On the Relevance of Face-to-Edge π-π Interactions to Chiral Recognition. J. Chromatogr. A 1996, 749, 19–24.
   Web of Science ®Google Scholar
• Hyun, M. H., Na, M. S., Jin, J. S. Chiral Recognition Models for the Liquid Chromatographic Resolution of π-Acidic Racemates on a Chiral Stationary Phase Derived from N-phenyl-N-alkylamide of (S-naproxen). J. Chromatogr. A 1996, 752, 77–84.
   Web of Science ®Google Scholar
• Reubsaet, J. L. E.; Vieskar, R. Characterisation of π–π Interactions Which Determine Retention of Aromatic Compounds in Reversed-Phase Liquid Chromatography. J. Chromatogr. A 1999, 841, 147–154.
   Web of Science ®Google Scholar
• Horak, J.; Maier, N. M.; Lindner, W. Investigations on the Chromatographic Behavior of Hybrid Reversed-Phase Materials Containing Electron Donor–Acceptor Systems: II. Contribution of π–π Aromatic Interactions. J. Chromatogr. A 2004, 1045, 43–58.
   PubMed Web of Science ®Google Scholar
• Marchand, D. H.; Croes, K.; Dolan, J. W.; Snyder, L. R.; Henry, R. A.; Kallury, K. M. R.; Waite, S.; Carr, P. W. Column Selectivity in Reversed-Phase Liquid Chromatography: VIII. Phenylalkyl and Fluoro-Substituted Columns. J. Chromatogr. A 2005, 1062, 65–78.
   PubMed Web of Science ®Google Scholar
• Kayillo, S.; Dennis, G. R.; Shalliker, R. A. Retention of Polycyclic Aromatic Hydrocarbons on Propyl-Phenyl Stationary Phases in Reversed-Phase High Performance Liquid Chromatography. J. Chromatogr. A 2007, 1148, 168–176.
   PubMed Web of Science ®Google Scholar
• Stevenson, P. G.; Gritti, F.; Guiochon, G.; Mayfield, K. J.; Dennis, G. R.; Shalliker, R. A. π-Selective Stationary Phases: (II) Adsorption Behaviour of Substituted Aromatic Compounds On N-Alkyl-Phenyl Stationary Phases. J. Chromatogr. A 2010, 1217, 5365–5376.
   PubMed Web of Science ®Google Scholar
• Miller, J. C.; Miler, J. N.; Ellis Horwood Series in Analytical Chemistry. Ellis Horwood Ltd., U.K., 1984.
   Google Scholar