Matrix-assisted diffusion-ordered spectroscopy: Mixture resolution by NMR using SDSmicelles

Claudio F. Tormena, Robert Evans, Stephan Haiber, Mathias Nilsson, Gareth A. Morris

    Research output: Contribution to journalArticlepeer-review


    Diffusion-ordered spectroscopy (DOSY) is a powerful technique for mixture analysis, but in its basic form it cannot separate the component spectra for species with very similar diffusion coefficients. It has been recently demonstrated that the component spectra of a mixture of isomers with nearly identical diffusion coefficients (the three dihydroxybenzenes) can be resolved using matrix-assisted DOSY (MAD), in which diffusion is perturbed by the addition of a co-solute such as a surfactant [R. Evans, S. Haiber, M. Nilsson, G. A. Morris, Anal. Chem. 2009, 81, 4548-4550]. However, little is known about the conditions required for such a separation, for example, the concentrations and concentration ratios of surfactant and solutes. The aim of this study was to explore the concentration range over whichmatrix-assisted DOSY using the surfactant SDS can achieve diffusion resolution of a simple model set of isomers, the monomethoxyphenols. The results show that the separation is remarkably robust with respect to both the concentrations and the concentration ratios of surfactant and solutes, supporting the idea that MAD may become a valuable tool formixture analysis. © 2010 John Wiley & Sons, Ltd.
    Original languageEnglish
    Pages (from-to)550-553
    Number of pages3
    JournalMagnetic Resonance in Chemistry
    Issue number7
    Publication statusPublished - Jul 2010


    • 1H
    • DOSY
    • Micelle
    • NMR
    • Surfactant


    Dive into the research topics of 'Matrix-assisted diffusion-ordered spectroscopy: Mixture resolution by NMR using SDSmicelles'. Together they form a unique fingerprint.

    Cite this