1. Dep. of Chemical and, Biochemical Engineering; Technical Univ. of Denmark; 2800 Kgs. Lyngby Denmark
2. Dep. of Basic Sciences and Environ. Environmental Chem. and Physics; Univ. of Copenhagen; DK-1871 Frederiksberg C
3. Dep. of Basic Sciences and Enviro., Environmental Chem. and Physics; Univ. of Copenhagen; DK-1871 Frederiksberg C