Determination of copper, zinc and iron concentrations in broncho-alveolar lavages by atomic absorption spectrometry
Concentrations of Zn, Cu and Fe were measured in 157 broncho-alveolar lavages (BAL), before and after centrifugation collected at the Leuven University Hospital (Belgium). Zn was measured by flame-atomic absorption spectroscopy, using direct calibration, while Cu and Fe were determined by electrothermal atomic absorption spectroscopy, using the method of standard additions. For Fe only 56 samples were measured. Most of the studied elements are present in the liquid phase (supernatant). About 90% of Cu concentrations lie between 0 and 15 ng/g, while 90% of Zn concentrations is lower than 230 ng/g, with 30% between 30 and 70 ng/g, and 50% between 100 and 200 ng/g. There seems to be a reverse relationship between Cu and Zn levels: high Cu going along with low Zn and vice versa.
Bibliographic Reference: Article: Journal of Trace Elements in Medicine and Biology (1997)
Record Number: 199711167 / Last updated on: 1997-09-23
Original language: en
Available languages: en