Analytical errors associated with trace element determination in freshwater particulate matter by atomic-absorption spectroscopy

Abstract

Nine analytical errors associated with two procedures for determining the trace element content of freshwater particulate matter by atomic-absorption spectroscopy were investigated using both natural samples and suspensions of candidate reference materials. The first method involves an ultrasound treatment of filters to remove collected particles, but in a second method the filters are destroyed by ashing. The precision and accuracy of the two procedures have been determined.