@article{
author = "Agbaba, Danica and Stojanov, Marina and Rajacić, S and Živanov-Stakić, Dobrila and Majkić-Singh, Nada",
year = "1993",
abstract = "We propose a simple and precise densitometric method for measuring vanillylmandelic acid (VMA). The method comprises direct urine application, thin-layer chromatographic (TLC) separation, postchromatographic derivatization, and in situ reading of the formed derivative at 560 nm. Quantitation was done by measuring peak area with a computer-controlled TLC Scanner and applying a five-point calibration function. The calibration function was 7.57-49.23 μmol/L. This method was used to determine urinary concentrations of excreted VMA; concentrations ranged from 4.84 to 56.06 μmol/day.",
journal = "Clinical Chemistry",
title = "Densitometric determination of urinary 4-hydroxy-3-methoxymandelic acid (vanillylmandelic acid)",
volume = "39",
number = "12",
pages = "2500-2503",
url = "https://hdl.handle.net/21.15107/rcub_farfar_100"
}