[en] Ionic liquids (ILs) appear really attractive as electrolyte additives in nonaqueous capillary electrophoresis (NACE). These salts may offer new possibilities of interactions to modulate analyte effective mobilities. The presence of 1-n-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (BMIM NTf2) in acetonitrile/alcohol background electrolytes (BGEs) was investigated in this work. The aim of this study was to elucidate the influence of the IL concentration on the electrophoretic behavior of four arylpropionic acids and to identify the interactions between the analytes and the 1L cation. The influence on mobility of the IL concentration, the nature and the proportion of the organic solvents, and the concentration of the ionic components of the BGE was first studied by a univariate approach. A four-factor D-optimal experimental design was then applied to provide a deeper insight into analyte interaction with IL cation present both free in BGE and adsorbed onto the capillary wall. (c) 2006 Elsevier B.V. All rights reserved.
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Wasserscheidt P., and Weldon T. Ionic Liquids in Synthesis (2003), Wiley-VCH, New York
Dupont J., de Souza R.F., and Suarez P.A.Z. Chem. Rev. 102 (2002) 3667
Wasserscheidt P., and Keim W. Angew. Chem. Int. Ed. 39 (2000) 3772
Earle M.J., and Seddon K.R. Pure Appl. Chem. 72 (2000) 1391
Vaher M., Koel M., and Kaljurand M. Chromatographia 53 (2001) S-302
Vaher M., Koel M., and Kaljurand M. Electrophoresis 23 (2002) 426
Vaher M., Koel M., and Kaljurand M. J. Chromatogr. A 979 (2002) 27
Kuldvee R., Vaher M., Koel M., and Kaljurand M. Electrophoresis 24 (2003) 1627
Vaher M., and Kaljurand M. J. Chromatogr. A 990 (2003) 225
Mwongela S.M., Numan A., Gill N.L., Agbaria R.A., and Warner I.M. Anal. Chem. 75 (2003) 6089
Riekkola M.L., Jussila M., Porras S.P., and Valko I.E. J. Chromatogr. A 892 (2000) 155
Lämmerhofer M. J. Chromatogr. A 1068 (2005) 3
Descroix S., Varenne A., Geiser L., Cherkaoui S., Veuthey J.L., and Gareil P. Electrophoresis 24 (2003) 1577
Cherkaoui S., and Veuthey J.L. J. Chromatogr. A 874 (2000) 121
Marcus Y. Ion Solvation (1985), Wiley, New York
Lelièvre F., and Gareil P. J. Chromatogr. A 735 (1996) 311
Francois Y., Zhang K., Varenne A., and Gareil P. Anal. Chim. Acta 562 (2006) 164
Servais A.-C., Fillet M., Chiap P., Dewé W., Hubert P., and Crommen J. J. Chromatogr. A 1068 (2005) 143
User's Guide to MODDE® 4.0, Graphical Software for Design of Experiments, Umetri AB, Umea, Sweden.
Massart D.L., Vandeginste B.G.M., Deming S.N., Michotte Y., and Kaufman L. Data Handling in Science and Technology. Chemometrics: A Textbook vol. 2 (1988), B.G.M. Elsevier, Amsterdam
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.
