1. Department of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
2. Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, OX1 3TA, United Kingdom
3. Chemistry Institute, University of Campinas − UNICAMP, P.O. Box 6154, 13083-970 Campinas, SP, Brazil
4. Analytical Research & Development, Merck & Co., Inc., 126 Lincoln Avenue, Rahway, New Jersey 07065, United States
5. Nanalysis Corp., 1-4600 5 Street NE, Calgary, Alberta, Canada T2E 7C3
6. Department of Organic Chemistry, Faculty of Chemical Science, Complutense University of Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain