Atomic absorption spectrometry - a valuable tool for trace and ultratrace determinations of metals and metalloids in biological materials

Abstract This paper commences with a review of important improvements in Atomic Absorption instrumentation particularly of benefit for the performance of analyses in biological materials. This is followed by examples for the optimization of the initial steps of analytical procedures and a new instrumental concept for the ultratrace analysis of mercury by a cold-vapour technique. Further proven and still useful as well as new methodological approaches for the determination of mercury, arsenic, cadmium, lead and nickel, mainly in body fluids, at normal and elevated levels are summarized from the experience of the author, which not only demonstrates the present and future potential but also some obviously still existing limitations.

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