1. School of Chemistry, University College Dublin, Science Centre South, Dublin 4, Ireland
2. Almac Sciences, Technology Department, Craigavon BT63 5QD, UK
3. Arran Chemical Company, Monksland Industrial Estate, Roscommon N37 DN24, Ireland
4. Vapourtec, Fornham St Genevieve, Bury St Edmunds, Suffolk, IP28 6TS, UK