Determination of histamine in port wines and grape juices by ion-pair extraction and stable isotope dilution GC-MS

Determination of Homovanillic Acid and V

Determination of Homovanillic Acid and Vanillylmandelic Acid in Neuroblastoma Screening by Stable Isotope Dilution GC-MS

✍ Fauler, G.; Leis, H. J.; Huber, E.; Schellauf, Ch.; Kerbl, R.; Urban, Ch.; Gleis 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 397 KB 👁 1 views

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