Issue 16, 2013

Optimisation of asymmetrical flow-field fractionation for the characterisation of gum arabic (Acacia sengal var senegal) and comparison with gel permeation chromatography

Abstract

Asymmetrical flow field-flow fractionation (AF4) linked to three detection systems (multi angle laser light scattering, refractive index and UV) was used to determine the molecular weight and molecular distribution of the component Acacia sengal var senegal (henceforth referred to as gum arabic). The effects of sample concentration and applied field strength (cross-flow) were examined to determine the optimum fractionation conditions in comparison with the behaviour of a monodispersed polysaccharide (Pullulan-100). The results using AF4-MALLS are in good agreement with those using GPC-MALLS.

Graphical abstract: Optimisation of asymmetrical flow-field fractionation for the characterisation of gum arabic (Acacia sengal var senegal) and comparison with gel permeation chromatography

Article information

Article type
Paper
Submitted
17 May 2013
Accepted
11 Jun 2013
First published
13 Jun 2013

Anal. Methods, 2013,5, 4047-4052

Optimisation of asymmetrical flow-field fractionation for the characterisation of gum arabic (Acacia sengal var senegal) and comparison with gel permeation chromatography

M. Andres-Brull, S. Al-Assaf, G. O. Phillips and K. Jackson, Anal. Methods, 2013, 5, 4047 DOI: 10.1039/C3AY40835C

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