On-Line Sample Enrichment in Electrokinetic Chromatography

Electrokinetic Chromatography: Theory, Instrumentation and Applications

Volumn , Issue , 2007, Pages 207-231

  Quirino, Joselito P ^a  

^a SCIOS INC   (United States)

Author keywords

Analyte focusing in sweeping and partitioning or complexation; Field amplified sample injection; Large volume sample stacking (LVSS); On line sample enrichment in EKC; PH junction combined with sweeping; Stacking using reverse migrating pseudostationary phase and water plug (SRW)

Indexed keywords

EID: 84889449465     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1002/9780470871041.ch10     Document Type: Chapter

References (26)

1. R. Carabias-Martínez, E. Rodríguez-Gonzalo, P. Revilla-Ruiz and J. Domínguez-Á lvarez. Solid-phase extraction and sample stacking-micellar electrokinetic capillary chromatography for the determination of multiresidues of herbicides and metabolites, J. Chromatogr. A., 990, 291-302 (2003).
2. R. Zhang and S. Hjerten. A micromethod for concentration and desalting utilizing a hollow fiber, with special reference to capillary electrophoresis, Anal. Chem., 69, 1585-1592 (1997).
3. J.P. Quirino and S. Terabe. Sample stacking of cationic and anionic analytes in capillary electrophoresis, J. Chromatogr. A., 902, 119-135 (2000) and references cited therein.
4. C.-X. Zhang and W. Thormann. Head-column field-amplified sample stacking in binary system capillary electrophoresis: a robust approach providing over 1000-fold sensitivity enhancement, Anal. Chem., 68, 2523-2532 (1996).
5. Z. Liu, P. Sam, S.R. Sirimanne, P.C. McClure, J. Grainger and D.G. Patterson. Field-amplified sample stacking in micellar electrokinetic chromatography for on-column sample concentration of neutral molecules, J. Chromatogr. A., 673, 125-132 (1994).
6. J.P. Quirino and S. Terabe. Stacking of neutral analytes in micellar electrokinetic chromatography, J. Cap. Electrophoresis, 4, 233-245 (1997).
7. J.P. Quirino and S. Terabe. On-line concentration of neutral analytes for micellar electrokinetic chromatography: I. Normal stacking mode, J. Chromatogr. A., 781, 119-128 (1997).
8. J.P. Quirino and S. Terabe. On-line concentration of neutral analytes for micellar electrokinetic chromatography: II. Reversed electrode polarity stacking mode, J. Chromatogr. A., 791, 255-267 (1997).
9. J. P. Quirino and S. Terabe. On-line concentration of neutral analytes for micellar electrokinetic chromatography: IV. Field-enhanced sample injection, J. Chromatogr. A., 798, 251-257 (1998).
10. J.P. Quirino and S. Terabe. On-line concentration of neutral analytes for micellar electrokinetic chromatography: 3. Stacking with reverse migrating micelles, Anal. Chem. 70, 149-157 (1998).
11. J.P. Quirino and S. Terabe. On-line concentration of neutral analytes for micellar electrokinetic chromatography: 5. Field-enhanced sample injection with reverse migrating micelles, Anal. Chem., 70, 1893-1901 (1998).
12. J.P. Quirino, K. Otsuka and S. Terabe. On-line concentration of neutral analytes for micellar electrokinetic chromatography: VI. Stacking using reverse migrating micelles and a water plug, J. Chromatogr. B., 714, 29-38 (1998).
13. J.P. Quirino and S. Terabe. Exceeding 5000-fold concentration of dilute analytes in micellar electrokinetic chromatography, Science, 282, 465-468 (1998).
14. J.P. Quirino and S. Terabe. Sweeping of analyte zones in electrokinetic chromatography, Anal. Chem., 71, 1638-1644 (1999).
15. M. R. N. Monton, J. P. Quirino, K. Otsuka and S. Terabe. Separation and on-line preconcentration by sweeping of charged analytes in electrokinetic chromatography with nonionic micelles, J. Chromatogr. A., 939, 99-108 (2001).
16. J.P. Quirino and S. Terabe. Sweeping with an enhanced electric field of neutral analyte zones in electrokinetic chromatography, J. High Res. Chromatogr., 22, 367-372 (1999).
17. J.P. Quirino and S. Terabe. Sweeping: concentration mechanism and applications to highsensitivity analysis in capillary electrophoresis, J. Chromatogr. A., 965, 357-373 (2002).
18. J.P. Quirino, S. Terabe and P. Bocek. Sweeping of neutral analytes in electrokinetic chromatography with high-salt-containing matrixes, Anal. Chem., 71, 1934-1940 (2000).
19. J.-B. Kim, K. Otsuka and S. Terabe. On-line sample preconcentration in micellar electrokinetic chromatography using ion-pair reagents, J. Chromatogr. A., 979, 131-136 (2002).
20. J.P. Quirino and S. Terabe. Approaching a million-fold sensitivity increase in capillary electrophoresis with direct ultraviolet detection: cation-selective exhaustive injection and sweeping, Anal. Chem., 72, 1023-1030 (2000).
21. J.-B. Kim, K. Otsuka and S. Terabe. Anion selective exhaustive injection-sweep-micellar electrokinetic chromatography, J. Chromatogr. A., 932, 129-137 (2001).
22. L. Zhu, C. Tu, and H.K. Lee. On-line concentration of acidic compounds by anion-selective exhaustive injection-sweeping-micellar electrokinetic chromatography, Anal. Chem., 74, 5820-5825 (2002).
23. P. Britz-McKibbin, K. Otsuka, and S. Terabe. On-line focusing of flavin derivatives using dynamic pH junction-sweeping capillary electrophoresis with laser-induced fluorescence detection, Anal. Chem., 74, 3736-3743 (2002).
24. O. Nunez, J.-B. Kin, E. Moyano, M.T. Galceran and S. Terabe. Analysis of the herbicides paraquat, diquat and difenzoquat in drinking water by micellar electrokinetic chromatography using sweeping and cation selective exhaustive injection, J. Chromatogr. A., 961, 65-75 (2002).
25. H. Yan, G. Yang, F. Qiao and Y. Chen. Determination of nateglinide in animal plasma by micellar electrokinetic chromatography and on-line sweeping technique, J. Pharm. Biomedical Anal., 36, 169-174 (2004).
26. S.Wang, Y.Wu, Y. Ju, X. Chen, W. Zheng and Z. Hu. On-line concentration by field-enhanced sample injection with reverse migrating micelles in micellar electrokinetic capillary chromatography for the analysis of flavonoids in Epimedium brevicornum Maxim, J. Chromatogr. A., 1017, 27-34 (2003).