Abstract
MOST methods for the determination of traces (0.01–1 p.p.m.) of lead in urine require prior removal of organic matter and concentration of the lead by ashing. These methods have several drawbacks : the time required for ashing ; possible interference from other metals such as bismuth ; and the need for careful purification of a variety of reagents to keep the blank reading at a reasonably low level.
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WILLIS, J. Determination of Lead in Urine by Atomic Absorption Spectroscopy. Nature 191, 381–382 (1961). https://doi.org/10.1038/191381a0
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DOI: https://doi.org/10.1038/191381a0
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