THE JOURNAL OF VITAMINOLOGY
Online ISSN : 2185-2553
Print ISSN : 0022-5398
STUDIES ON THE CHEMICAL PROPERTIES OF METHYLMETHIONINE SULFONIUM DERIVATIVE
I. COLORIMETRIC DETERMINATION WITH POTASSIUM 1, 2-NAPHTHOQUINONE-4-SULFONATE
SHUNTARO OGAWAMINORU MORITAAKEMI KOSHIMOTOKUMII DOME
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1966 Volume 12 Issue 2 Pages 162-168

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Abstract
A simple assay method of methylmethionine sulfonium derivative was established utilizing the precipitation reaction with phosphotungstic acid and the coloration with potassium 1, 2-naphthocluinone-4-sulfonate. This method could satisfactorily be applied for the determination in rather complicated, mixed preparations.
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© THE VITAMIN SOCIETY OF JAPAN
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