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Report No.

Adsorption of ytterbium onto ${it Saccharomyces cerevisiae}$ fungal cells; A pH-dependent contribution of phosphoryl functional group

Jiang, M. Y.*; Onuki, Toshihiko; Yamasaki, Shinya; Tanaka, Kazuya*; Utsunomiya, Satoshi*

The adsorption of Ytterbium on the cells of yeast ${it Saccharomyces cerevisiae}$ has been studied by batch type experiment by changing solution pH. The Yb adsorption species on the yeast cell wall of the ${it Saccharomyces cerevisiae}$ was determined by extended X-ray absorption fine structure (EXAFS) spectroscopy combined with a linear combination analysis at various pHs. The results indicated that the contribution of Yb-phosphoryl species was constant between pH 3 and 5, strongly suggesting that most of the Yb was associated with undeprotonated phosphoryl functional groups.



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Category:Chemistry, Analytical



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