Micellar electrokinetic capillary chromatography of methylxanthines- containing beverages: Discussion of the molecular species involved
Micellar electrokinetic capillary chromatography (MECC) experimental conditions were applied to 12 samples of methylxanthine-containing infusions of different commercial brands of yerba mate, coffee, tea and cocoa as well as two cola drinks. The best resolution in this mode of automated high-perform...
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2005
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| LEADER | 06898caa a22006617a 4500 | ||
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| 001 | PAPER-22156 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518205341.0 | ||
| 008 | 190411s2005 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-14144253256 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 030 | |a JSFAA | ||
| 100 | 1 | |a Pomilio, A.B. | |
| 245 | 1 | 0 | |a Micellar electrokinetic capillary chromatography of methylxanthines- containing beverages: Discussion of the molecular species involved |
| 260 | |c 2005 | ||
| 270 | 1 | 0 | |m Pomilio, A.B.; PROPLAME-CONICET, Depto. de Quim. Orgánica, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina; email: abpomilio@sinectis.com.ar |
| 506 | |2 openaire |e Política editorial | ||
| 504 | |a Otsuka, K., Terabe, S., Micellar electrokinetic chromatography (1996) Capillary Electrophoresis Guidebook: Principles, Operation, and Applications, pp. 125-155. , Ed by Altria KD. Humana Press, Totowa, NJ | ||
| 504 | |a Khaledi, M.G., Micellar electrokinetic chromatography (1998) High-Performance Capillary Electraphoresis: Theory, Techniques and Applications, pp. 77-140. , Ed by Khaledi MG. J Wiley, New York, Chap 3 | ||
| 504 | |a Sun, P., Mariano, G.J., Barker, G., Hartwick, R.A., Comparison of micellar electrokinetic capillary chromatography and high-performance liquid chromatography on the separation and determination of caffeine and its analogues in pharmaceutical tablets (1994) Anal Lett, 27, pp. 927-937 | ||
| 504 | |a Reynolds, J.E.F., (1996) Martindale. The Extra Phamacopoiea, 31st Edn., pp. 1651-1665. , Royal Pharmaceutical Society, London | ||
| 504 | |a Ruijter, J., Lorist, M.M., Snel, J., De Ruiter, M.B., The influence of caffeine on sustained attention: An ERP study (2000) Pharmac Biochem Behav, 66, pp. 29-37 | ||
| 504 | |a Powell, K.R., Iuvone, P.M., Holtzman, S.G., The role of dopamine in the locomotor stimulant effects and tolerance to these effects of caffeine (2001) Pharmac Biochem Behav, 69, pp. 59-70 | ||
| 504 | |a Jindal, D.P., Bhatti, R.S., Ahlawat, S., Gupta, R., Synthesis and bronchodilatory activity of some nitrogen bridgehead compounds (2002) Eur J Med Chem, 37, pp. 419-425 | ||
| 504 | |a Gupra, S., Saha, B., Giri, A.K., Comparative antimutagenic and anticlastogenic effects of green tea and black tea: A review (2002) Mutat Res, 512, pp. 37-65 | ||
| 504 | |a Casal, S., Fernandes, J.O., Oliveira, M.B.P.P., Ferreira, M.A., Gas chromatographic-mass spectrometric quantification of 4-(5-methylimidazole) in roasted coffee after ion-pair extraction (2002) J Chmmatogr A, 976, pp. 285-291 | ||
| 504 | |a Schrader, E., Klaunick, G., Jorritsma, U., Neurath, H., Hirsch-Ernst, K.I., Kahl, G.F., Foth, H., High-performance liquid chromatographic method for simultaneous determination of [1-methyl- 14C] caffeine and its eight major metabolites in rat unne (1999) J Chromatogr B Biomed Sci Applic, 726, pp. 195-201 | ||
| 504 | |a Athayde, M.L., Coelho, G.C., Schenkel, E.P., Caffeine and theobromine in epicuncular wax of Ilex paraguariensis St-Hil (2000) Phytochemistry, 55, pp. 853-857 | ||
| 504 | |a Zhao, Y., Lunte, C.E., Determination of caffeine and its metabolites by micellar electrokinetic capillary electrophoresis (1997) J Chromatogr B, 688, pp. 265-274 | ||
| 504 | |a Pomilio, A.B., Trajtemberg, S., Vitale, A.A., High-performance capillary electrophoresis analysis of mate infusions prepared from stems and leaves of Ilex paraguariensis using automated micellar electrokinetic capillary chromatography (2002) Phytochem Anal, 13, pp. 235-241 | ||
| 504 | |a Freitag, D., Schmitt-Kopplin, P., Simon, R., Kaune, A., Kettrup, A., Interactions of hydroxy-s-triazines with sodium dodecyl sulfate-micelles investigated by micellar capillary electrophoresis (1999) Electrophoresis, 20, pp. 1568-1577 | ||
| 504 | |a Hinze, W., (1987) Ordered Media in Chemical Separations, , Ed by Hinze W and Armstrong D. American Chemical Society, Washington, DC | ||
| 504 | |a Rasmussen, H.T., Goebel, L.K., McNair, H.M., Optimisation of resolution in micellar electrokinetic chromatography (1991) J High Resol Chromatogr, 14, pp. 25-28 | ||
| 520 | 3 | |a Micellar electrokinetic capillary chromatography (MECC) experimental conditions were applied to 12 samples of methylxanthine-containing infusions of different commercial brands of yerba mate, coffee, tea and cocoa as well as two cola drinks. The best resolution in this mode of automated high-performance capillary electrophoresis (HPCE) was achieved here when using 15 kV voltage in an uncoated fused-silica capillary of 45 cm length (40 cm effective length), 50 mM sodium dodecylsulfate, 90 mM pH 8.5 borate buffer and UV detection. Theobromine, caffeine and theophylline were separated, and the peak splitting due to tautomeric species was observed. Experimental conditions were controlled, keeping constant the size of the elution window in each analysis. The limit of detection was less than 1 mgl -1, the limit of quantitation was 2.5 mgl -1 and the work range was 2.5-300 mgl -1. This HPCE-MECC system has proved suitable for the analysis/quality control of xanthines in beverages for consumption. Roles of various parameters as well as distinctly charged species of each xanthine and the origin of peak splitting in this MECC system are discussed. © 2004 Society of Chemical Industry. |l eng | |
| 593 | |a PROPLAME-CONlCET, Depto. de Quim. Orgánica, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina | ||
| 593 | |a PROPLAME-CONICET, Depto. de Quim. Orgánica, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina | ||
| 593 | |a Natl. Research Council of Argintina, Argentina | ||
| 690 | 1 | 0 | |a AUTOMATED HIGH-PERFORMANCE CAPILLARY ELECTROPHORESIS (HPCE) |
| 690 | 1 | 0 | |a BEVERAGES |
| 690 | 1 | 0 | |a CAFFEINE |
| 690 | 1 | 0 | |a KETO-ENOL TAUTOMERISM |
| 690 | 1 | 0 | |a MICELLAR ELECTROKINETIC CAPILLARY CHROMATOGRAPHY (MECC) |
| 690 | 1 | 0 | |a THEOBROMINE |
| 690 | 1 | 0 | |a THEOPHYLLINE |
| 690 | 1 | 0 | |a COLA |
| 690 | 1 | 0 | |a CROTON OVALIFOLIUS |
| 690 | 1 | 0 | |a ILEX PARAGUARIENSIS |
| 690 | 1 | 0 | |a THEOBROMA CACAO |
| 700 | 1 | |a Trajtemberg, S.P. | |
| 700 | 1 | |a Vitale, A.A. | |
| 773 | 0 | |d 2005 |g v. 85 |h pp. 622-628 |k n. 4 |p J. Sci. Food Agric. |x 00225142 |w (AR-BaUEN)CENRE-421 |t Journal of the Science of Food and Agriculture | |
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| 856 | 4 | 0 | |u https://doi.org/10.1002/jsfa.2020 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_00225142_v85_n4_p622_Pomilio |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00225142_v85_n4_p622_Pomilio |y Registro en la Biblioteca Digital |
| 961 | |a paper_00225142_v85_n4_p622_Pomilio |b paper |c PE | ||
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| 999 | |c 83109 | ||