High submicellar liquid chromatography
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Otros documentos de la autoría: Ruiz Ángel, M. J.; Carda-Broch, Samuel; García Álvarez-Coque, M. C.
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High submicellar liquid chromatographyFecha de publicación
2014-07Editor
Taylor & FrancisCita bibliográfica
RUIZ-ÁNGEL, Maria Jose; CARDA-BROCH, Samuel; GARCÍA-ÁLVAREZ-COQUE, Maria Celia. High Submicellar Liquid Chromatography. Separation & Purification Reviews, 2014, 43.2: 124-154.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.tandfonline.com/doi/abs/10.1080/15422119.2012.743917Versión
info:eu-repo/semantics/submittedVersionPalabras clave / Materias
Resumen
Surfactant addition above the critical micellar concentration (CMC), in reversed-phase liquid chromatography (RPLC), was proposed as a way to modify the selectivity and analysis time, giving rise to a chromatographic ... [+]
Surfactant addition above the critical micellar concentration (CMC), in reversed-phase liquid chromatography (RPLC), was proposed as a way to modify the selectivity and analysis time, giving rise to a chromatographic mode called micellar liquid chromatography (MLC). However, solutions containing only surfactant are too weak and yield poor peak shape. This was remediated by the addition of a small amount of organic solvent. To preserve the existence of micelles, in MLC high contents of organic solvent are avoided. Nevertheless, there is no reason to neglect the potentiality of mobile phases containing a surfactant above its CMC in water and a high organic solvent content (without micelles). This chromatographic mode has been called high submicellar liquid chromatography (HSLC). Several reported procedures show that the combination of stronger elution strength, larger selectivity and improved peak shape, with respect to MLC and conventional RPLC, makes HSLC a promising chromatographic mode to achieve in practical times separations of compounds unresolved or highly retained with other RPLC modes. Some insights on the interactions that occur inside the chromatographic column, the modification of the stationary and mobile phases, retention modeling, and chromatographic performance in HSLC are here offered, in comparison to MLC and conventional RPLC. [-]
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Separation & Purification Reviews Volume 43, Issue 2, 2014Derechos de acceso
© 2014 Taylor & Francis Group
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