Studies on the estimation of 3-methoxy-4
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H. Weil-Malherbe
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Article
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1964
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Elsevier Science
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English
β 534 KB
A method for the estimation of 3-methoxy-4-hydroxymandelic acid (VMA) in urine, based on its oxidation to vanillin, was introduced by Sandler and Ruthven (1, 2) : VMA was isolated from urine by ion exchange and ethyl acetate extraction and converted to vanillin by autoclaving in acid solution, in th