𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Influence of alcoholic modifiers on the selectivity of the separation of a group of polycyclic aromatic hydrocarbons by micellar liquid chromatography

✍ Scribed by M.A.Rodríguez Delgado; M.J. Sánchez; V. González; F.García Montelongo

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
749 KB
Volume
298
Category
Article
ISSN
0003-2670

No coin nor oath required. For personal study only.

✦ Synopsis

The role of micelles and alcohols as the modifiers of the aqueous mobile phase in reversed-phase liquid chromatography in controlling retention and selectivity of polyaromatic hydrocarbons (PAHs) is studied. Elution strength increases with an increase in the alcohol or micelle concentration, and enhancement of separation selectivity with elution strength was observed. Increasing micelle concentration has an opposite effect, when compared to increasing alcohol modifier concentration, on the separation selectivity, showing that for this group of PAHs the separation selectivity is better with mobile phases of medium concentration of micelles and moderately high alcohol percentages. The selectivity enhancement can be explained in terms of the competing equilibria in micellar liquid chromatography.

📜 SIMILAR VOLUMES

Micellar liquid chromatography of polycy
Micellar liquid chromatography of polycyclic aromatic hydrocarbons: Alkylpyridinium chloride as mobile phase modifier and selective fluorescence quencher
✍ Chunfeng Mao; Kelly E. McGill; Sheryl A. Tucker 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 373 KB

## Abstract The dual role of alkylpyridinium chlorides, cetylpyridinium chloride (CPC) and dodecylpyridinium chloride (DDPC), as micellar mobile phase modifiers and selective fluorescence quenching agents of polycyclic aromatic hydrocarbons (PAHs), in micellar liquid chromatographic separation of P

Optimization of micellar liquid chromato
Optimization of micellar liquid chromatographic separation of polycyclic aromatic hydrocarbons with the addition of second organic additive
✍ Chunfeng Mao; Kelly E. McGill; Sheryl A. Tucker 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 442 KB

## Abstract The micellar liquid chromatographic (MLC) separations of polycyclic aromatic hydrocarbons (PAHs) were optimized for three micellar systems, cetyltrimethylammonium chloride (CTAC), dodecyltrimethylammonium chloride (DTAC), and sodium dodecylsulfate (SDS), with 1‐pentanol as the only orga

Study of the Separation Selectivity of a
Study of the Separation Selectivity of a Group of Benzene and Naphthalene Derivatives in Micellar Liquid Chromatography
✍ M.L. Marina; O. Jiménez; M.A. Garcı́a; S. Vera 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 130 KB

The influence of the surfactant nature and concentration in the mobile phase on the separation selectivity of fifteen benzene and naphthalene derivatives in Micellar Liquid Chromatography has been determined by using an octadecylsilica column. Sodium dodecylsulphate (SDS), hexadecyltrimetylammonium