Title: β-FeOOH · Cln (akaganéite) and Fe1-xO (wüstite) in hot brine from the Atlantis II Deep (Red Sea) and the uptake of amino acids by synthetic β-FeOOH · Cln
Abstract: A yellowish brown precipitate in samples of Red Sea hot brine has been identified as β-FeOOH · Cln (akaganéite) by Guinier-Hägg X-ray diffraction techniques, transmission electron microscopy (TEM), electron diffraction and electron excited X-ray fluorescence. Microcrystals of Fe1-xO (wüstite) were also identified by electron diffraction. Synthetic β-FeOOH · Cln characterized by the same techniques was identical with the brine precipitate. Bonding between β-FeOOH · Cln and 14C labeled amino acids is pH dependent: between pH 3 and pH 7.6 amino acids were bound to the extent of 40 to 60% or 0.6 to 0.9 mmol per kg of iron oxide hydroxide. Some selectivity in affinity for different amino acids was observed, however, the effect is insufficient to explain the unusual distribution in the Atlantis II Deep brine reported in the literature.
Publication Year: 1983
Publication Date: 1983-08-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 60
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