Abstract
Abstract A description is given of a total analytical approach to the determination of copper, zinc, cadmium and lead in fresh natural waters of streams draining selected southern Ontario agricultural watersheds. Central to the attainment of accurate analytical information was the adoption of a data quality assurance program encompassing: (1) field and laboratory processing of control samples to establish filtration adsorption/contamination parameters, (2) performance evaluation of analytical methodology via recoveries of added analytes and use of reference samples, (3) systematic incorporation into the measurement scheme of quality control solutions, (4) participation in analytical round robin laboratory studies, (5) participation in the study of several other laboratories applying independently different analytical methodologies to the analysis of water and suspended sediment samples, and (6) other related considerations. Analytical methodologies based on atomic absorption spectrometry, optical emission spectrometry and differential pulse anodic stripping voltammetry gave satisfactory data in respect of dissolved, suspended and total concentrations of the trace metals in natural water samples.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
