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A quantitative assay for vanillylmandelic acid (VMA) by gas-liquid chromatography

✍ Scribed by Sherwin Wilk; Stanley E. Gitlow; Milton Mendlowitz; Morton J. Franklin; Herman E. Carr; Donald D. Clarke

Book ID
107710690
Publisher
Elsevier Science
Year
1965
Tongue
English
Weight
488 KB
Volume
13
Category
Article
ISSN
0003-2697

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Quantitative assay of diclofenac in biol
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✍ U.P. Geiger; P.H. Degen; A. Sioufi πŸ“‚ Article πŸ“… 1975 πŸ› Elsevier Science 🌐 English βš– 405 KB

Diclofenac and an internal standard are isolated from biological samples by acid-specific extraction and converted into the corresponding indolones with 0.5% sulphuric acid in 2,2,2-trifluorethanol. The neutral derivatives are isolated by solvent extraction and subjected to gas-liquid chromatography