Summary
The ultra trace element bismuth is regulary found in wine on an average of about 0.1 ppb. Very low bismuth contents were also determined in soil and different biomaterials. In spite of those very low quantities even speciation experiments show results, so far that about 90% of the bismuth in the grapes is water-soluble, resumably as saccharic acids. For detecting such low quantities a very sensitive method of differential pulse anodic stripping voltammetry was developped. The speciation experiments were carried out by fractional extraction.
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Herrn Prof. Dr. G. Tölg zum 60. Geburtstag gewidmet
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Bauer, K.H., Neeb, R. & Eschnauer, H. Inversvoltammetrische Bestimmung des Bismuts in Biomatrices mit computerunterstützter Meßsignalauswertung. Z. Anal. Chem. 335, 808–812 (1989). https://doi.org/10.1007/BF01204093
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DOI: https://doi.org/10.1007/BF01204093