1. National Water Research Institute, 11 Innovation Blvd, Saskatoon, Saskatchewan, S7N 3H5, Canada
2. University of Alberta, Department of Biological Sciences, Edmonton, Alberta, T6G 2E9, Canada
3. Canadian Food Inspection Agency, Centre for Veterinary Drug Residues, 116 Veterinary Rd, Saskatoon, Saskatchewan, S7N 2R3, Canada