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Polarized Zeeman-effect flameless atomic absorption spectrometry of cadmium, copper, lead, and manganese in human kidney cortex

Journal Article · · Clin. Chem.; (United States)
OSTI ID:6935488
Polarized Zeeman-effect flameless atomic absorption spectroscopy was used to quantitatively measure cadmium, copper, lead, and manganese in a nitric acid digest of lyophilized human kidney cortex. Within-run coefficients of variation for cadmium, copper, lead, and manganese were 4.1, 6.3, 3.7, and 5.6%, respectively. Between-run coefficients of variation were 6.9, 5.5, 5.9, and 6.3%, respectively, for cadmium, copper, lead, and manganese. The detection limits were 5.2 ..mu..g/L for copper, 1.2 ..mu..g/L for both cadmium and lead, and 0.8 ..mu..g/L for manganese. Assays were linear to 75 ..mu..g/L for cadmium, 100 ..mu..g/L for manganese, and 200 ..mu..g/L for copper and lead. Average analytical recoveries for the four metals ranged between 95 and 101%. Because these metals were quantitated in the same digest of kidney cortex, the values for each digest gave a trace-metal profile for each autopsy specimen.
OSTI ID:
6935488
Journal Information:
Clin. Chem.; (United States), Journal Name: Clin. Chem.; (United States) Vol. 27:1; ISSN CLCHA
Country of Publication:
United States
Language:
English