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On the occurrence of glusulase-hydrolyzable conjugates of 3,4-dihydroxy-phenylacetic and homovanillic acids in human urine

✍ Scribed by Elizabeth R.B. Smith; H. Weil-Malherbe


Book ID
118319300
Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
224 KB
Volume
35
Category
Article
ISSN
0009-8981

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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