Continuous full filling capillary electrochromatography: Nanoparticle synthesis and evaluation

Research output: Contribution to journalArticle

Abstract

Reversed phase continuous full filling capillary electrochromatography with electrospray ionisation mass spectrometric detection was performed with highly sulphated poly [styrene-co-(lauryl methacrylate)-co-(divinylbenzene)] nanoparticles. The nanoparticles that contained a hydrophobic core and a hydrophilic surface were prepared in a one step synthesis using soap free emulsion polymerisation. By changing the concentration of monomers, the polymerisation temperature, and the polarity of the dispersive phase, the size of the nanoparticles could be controlled. With the optimised conditions, nanoparticles with an average size of 157 nm were obtained. These nanoparticles were dispersed in the background electrolyte and used for reversed phase continuous full filling. An orthogonal electrospray ionisation interface was used to separate the eluting nanoparticles from the eluting analytes prior to mass spectrometry detection. Compared to previous studies on reversed phase continuous full filling, the retention, the separation efficiency, and the resolution of a homologous series of dialkyl phthalates were greatly improved.

Details

Authors
  • Peter Spégel
  • Peter Viberg
  • Jonas Carlstedt
  • Patrik Petersson
  • Magnus Jornten-Karlsson
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Analytical Chemistry

Keywords

  • continuous full filling, electrospray ionisation, orthogonal, capillary electrochromatography, mass spectrometry, pseudostationary, phase, reversed phase
Original languageEnglish
Pages (from-to)379-385
JournalJournal of Chromatography A
Volume1154
Issue number1-2
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004), Department of Chemistry (011001220)