Comparison of microemulsion electrokinetic chromatography and micellar electrokinetic chromatography as methods for the analysis of ten benzophenones.
Microemulsion electrokinetic chromatography (MEEKC) and micellar electrokinetic chromatograpy (MEKC) were compared for their abilities to separate and detect ten similar benzophenones, which are commonly used as UV filters in various plastic and cosmetic products. Sodium dodecyl sulfate (SDS) concentration and column temperature rarely affected separation resolution for MEEKC, but separation of benzophenones could be improved by changing the SDS concentration and column temperature for MEKC. Buffer pH and ethanol (organic modifier) were found to markedly influence the separation selectivity for both MEEKC and MEKC systems. In addition, a higher electric voltage improved the separation efficiency without a noticeable reduction in separation resolution for MEEKC, whereas it caused a poor separation resolution for the MEKC system.
Huang
Hsi-Ya
HY
Department of Chemistry and Center for Nanotechnology at CYCU, Chung Yuan Christian University, Chung-Li, Taiwan, R.O.C.
Chiu
Chen-Wen
CW
Department of Chemistry and Center for Nanotechnology at CYCU, Chung Yuan Christian University, Chung-Li, Taiwan, R.O.C.
Chen
Yen-Chen
YC
Department of Chemistry and Center for Nanotechnology at CYCU, Chung Yuan Christian University, Chung-Li, Taiwan, R.O.C.
Yeh
Jui-Ming
JM
Department of Chemistry and Center for Nanotechnology at CYCU, Chung Yuan Christian University, Chung-Li, Taiwan, R.O.C.
D001577:Benzophenones / Q000032:analysis* / Q000302:isolation & purification*; D002021:Buffers; D020374:Chromatography, Micellar Electrokinetic Capillary / Q000379:methods*; D003358:Cosmetics / Q000737:chemistry; D004563:Electrochemistry; D004655:Emulsions; D006863:Hydrogen-Ion Concentration; D012967:Sodium Dodecyl Sulfate; D013473:Sunscreening Agents / Q000032:analysis* / Q000302:isolation & purification*; D013696:Temperature
D001577:Benzophenones; D002021:Buffers; D003358:Cosmetics; D004655:Emulsions; D013473:Sunscreening Agents; D012967:Sodium Dodecyl Sulfate
Watarai, H., Chem. Lett. 1991, 231, 391-394.
Altria, K. D., Broderick, M. F., Donegan, S., Power, J., Electrophoresis 2004, 25, 645-652.
Mahuzier, P.-E., Altria, K. D., Clark, B. J., J. Chromatogr. A 2001, 924, 465-470.
Mahuzier, P.-E., Clark, B. J., Bryant, S. M., Altria, K. D., Electrophoresis 2001, 22, 3819-3823.
Hilder, E. F., Klampfl, C. W., Buchberger, W., Haddad, P. R., J. Chromatogr. A 2001, 922, 293-302.
Klampfl, C. W., Electrophoresis 2003, 24, 1537-1543.
Altria, K. D., Mahuzier, P.-E., Clark, B. J., Electrophoresis 2003, 24, 315-324.
Cahours, X., Cherkaoui, S., Rozing, G., Veuthey, J.-L., Electrophoresis 2002, 23, 2320-2326.
Gabel-Jensen, C., Hansen, S. H., Pedersen-Bjergaard, S., Electrophoresis 2001, 22, 1330-1336.
Pedersen-Bjergaard, S., Gabel-Jensen, C., Hansen, S. H., J. Chromatogr. A 2000, 897, 375-381.
Terabe, S., Otsuka, K., Ichikawa, K., Tsuchiya, A., Ando, T., Anal. Chem. 1984, 56, 111-113.
Watanabe, T., Terabe, S., J. Chromatogr. A 2000, 880, 295-301.
Quirino, J. P., Terabe, S., Anal. Chem. 1999, 71, 1638-1644.
Isoo, K., Otsuka, K., Terabe, S., Electrophoresis 2001, 22, 3426-3432.
Djordjevic, N. M., Fitzpatrick, F., Houdiere, F., Electrophoresis 2001, 22, 2398-2402.
Gong, S., Bo, T., Huang, L., Li, K. A., Liu, H., Electrophoresis 2004, 25, 1058-1064.
Huang, H.-Y., Lai, Y.-C., Chiu, C.-W., Yeh, J.-M., J. Chromatogr. A 2003, 993, 153-164.
Altria, K. D., J. Chromatogr. A 2000, 892, 171-186.
Mertzman, M. D., Foley, J. P., Electrophoresis 2004, 25, 723-732.
Melin, V., Perrett, D., Electrophoresis 2004, 25, 1503-1510.
Chisvert, A., Salvador, A., Pascual-Marti, M. C., Anal. Chim. Acta 2001, 428, 183-190.
Chisvert, A., Pascual-Marti, M. C., Salvador, A., J. Chromatogr. A 2001, 921, 207-215.
Shih, Y., Cheng, F.-C., J. Chromatogr. A 2000, 876, 243-246.
Scalia, S., J. Chromatogr. A 2000, 870, 199-205.
Lin, C.-E., Chen, M.-J., J. Chromatogr. A 2001, 923, 241-248.
Pietta, P. G., Bruno, A., Mauri, P. L., Gardana, C., Maffei-Facino, R., Carini, M., J. Pharm. Biomed. Anal. 1995, 13, 229-235.
Wang, S.-P., Lee, W.-T., J. Chromatogr. A 2003, 987, 269-275.
Klampfl, C. W., Leitner, T., J. Sep. Sci. 2003, 26, 1259-1262.
Klampfl, C. W., Leitner, T., Hilder, E. F., Electrophoresis 2002, 23, 2424-2429.