Homovanillic acid (HVA) and ~~anill~liiiandellic acid (VMA), two end products of dopaniine metabolism, were measured in 60 workers exposed to carbori disulfide (CS,) in a rayon juctory and in 48 une.xposed workers. The airborne CS, concentrations in eight major exposure zones of the plant were measu
New analyser for the determination of urinary vanillylmandelic acid, homovanillic acid and creatinine
β Scribed by Seiji Kawaguchi; Norio Hirachi; Mitsuru Fukamachi
- Publisher
- Elsevier Science
- Year
- 1991
- Weight
- 348 KB
- Volume
- 567
- Category
- Article
- ISSN
- 0378-4347
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## Abstract Recent reports have suggested that elevations of serum dopamineβBβhydroxylase (DBH) activity may correlate with diagnosis in neuroblastoma patients excreting vanillylmandelic acid (VMA). We have serially studied serum DBH and urinary homovanillic acid (HVA) and VMA excretion during the
A method for the quantitative determination of homovanillic acid (HVA) and vanillylmandelic acid (VMA), two metabolites of catecholamines, is presented. The assay is based on gas chromatography/electron impact mass spectrometry. The preparation of 13C-labeled VMA from is described. Together with pur