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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.

Additional information

Authors: HARLYK C, JRC Geel (BE);MCCOURT J, JRC Geel (BE);BORDIN G, JRC Geel (BE);RODRIGUEZ A R, JRC Geel (BE);VAN DER EECKHOUT A, Universitair Ziekenhuis Pellenberg, Leuven (BE)
Bibliographic Reference: Article: Journal of Trace Elements in Medicine and Biology (1997)
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