1. School of Chemical Engineering and Analytical Science, The University of Manchester, Sackville Street, Manchester, United Kingdom M60 1QD
2. Department of Analytical Sciences, Sanofi-Aventis Research, Willowburn Avenue, Alnwick, Northumberland, United Kingdom NE66 2JH
3. School of Chemistry, The University of Manchester, Brunswick Street, Manchester, United Kingdom M13 9PL