1. SERC, Sustainable Environment Research Centre, Faculty of Computing, Engineering and Science , University of South Wales , Pontypridd , UK
2. Department of Chemistry , St Olaf College , Northfield , MN , USA
3. Leibniz-Institut für Analytische Wissenschaften – ISAS , Dortmund , Germany
4. Department of Chemistry , The University of the West Indies , Mona Campus , Kingston 7 , Jamaica