Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Studies of Methionine Sulfoxide. III. A New Colorimetric Method for the Determination of Methionine Sulfoxide and Its Derivatives
Kensaku Morihara
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1964 Volume 37 Issue 12 Pages 1787-1794


1) A new colorimetric method for the determination of methionine sulfoxide and its derivatives on the basis of the rearrangement of sulfoxide by the action of acetic anhydride has been established.
2) From about 10 μ to 80 μ mol. of methionine sulfoxide can be determined with an experimental error of 3 per cent.
3) The interference with the reaction by various amino acids and related substances has been investigated.
4) Several compounds related to methionine sulfoxide have been prepared and analyzed by the present method.

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