1. Institute
of Environmental Assessment and Water Research, Spanish National Research Council (IDAEA-CSIC), Jordi Girona 18-26, 08034 Barcelona, Catalonia, Spain
2. Department
of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
3. Division
of Analytical and Environmental Toxicology, Department of Laboratory
Medicine and Pathology, University of Alberta, Edmonton, Alberta Canada