Micellar liquid chromatography. Retention study of solutes of various polarities

Coadsorption of Naphthalene Derivatives and Cetyltrimethylammonium Bromide on Alumina/Water, Titanium Dioxide/Water, and Silica/Water Interfaces

“…a highly curved surface cannot exist in the case of a flat Micellar high performance liquid chromatography bilayer (35,36). It remains to be demonstrated, however, (MHPLC) has been used to determine the two coefficients that the solutes investigated may penetrate into the cationic coined P ads and P mic in the present work (10)(11)(12)31). It was micellar aggregates.…”

Determination of Putrescine and Tyramine in Fish by Micellar Liquid Chromatography with UV Detection Using Direct Injection

“…Other procedures, such as thin layer chromatography [19] have also been proposed. Recently, gas chromatography [20] and HPLC [21][22][23] separation, *Address correspondence to this author at the Química Bioanalítica, Q.F.A., E.S.T.C.E, Universitat Jaume I, 12071 Castelló, Spain; Tel: +34964728095; Fax: +34964728066; E-mail: samuel.carda@qfa.uji.es followed by selective mass spectrometric detection, has become a method of choice but such selective, fast and sensitive methods are usually not suitable for routine clinical analysis due to financial reasons.…”

Study of the Separation Selectivity of a Group of Benzene and Naphthalene Derivatives in Micellar Liquid Chromatography

“…In MLC, solutes present in a mixture can partition between the bulk aqueous phase and the surfactant-modified stationary phase (P WS ) and between the bulk aqueous phase and the micellar aggregate present in the mobile phase (P WM ) (4,(10)(11)(12). In addition, for water insoluble solutes, partitioning can occur directly between the micelle solute species and the surfactant-coated stationary phase (P MS ) (11,13).…”

“…Advantages shown by MLC compared to conventional reversed-phase liquid chromatography (RPLC) are primarily unique selectivities of the micellar interaction and low cost and nontoxicity of surfactants compared to the expensive and flammable solvents of chromatographic grade, compatibility of mobile phases with salts and water-insoluble compounds, shorter equilibration times for gradient elution and different selectivity due to interactions of the analytes with the micelles and the surfactant-modified support, enhancement of fluorescence and absorption detection and its ability to simultaneously separate ionic and nonionic compounds and to perform the direct injection of plasma/ serum samples for bioanalysis (1,4,7,(14)(15)(16).…”

“…temperature, reducing linear velocity of the mobile phase, reducing micelle concentration, and using small amounts of alcohols as organic modifiers in the mobile phase (4,7,11,16).…”