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Comparative toxicity of selenate, selenite, seleno-DL-methionine and seleno-DL-cystine to Daphnia magna

โœ Scribed by Kurt J. Maier; Christopher G. Foe; Allen W. Knight

Book ID
112088391
Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
629 KB
Volume
12
Category
Article
ISSN
0730-7268

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Determination of the deprotonation const
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โœ Marcos Rivail da Silva; Riansares Muรฑos Olivas; O. F. X. Donard; Michel Lamotte ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 131 KB

We have determined the deprotonation constants (pK a ) of seleno-DL-cystine and seleno-DL-methionine together with those of DL-cystine and DL-methionine for comparison, by potentiometric measurements. In the case of seleno-DL-cystine, the difference between the pK a values for the two amino groups w