RT info:eu-repo/semantics/bachelorThesis
T1 Determination of homogentisic acid using HPLC with amperometric detection at carbon paste electrodes
A1 Lozano Alonso, María
A2 Universidad de Valladolid. Facultad de Ciencias
K1 Homogentisic acid
K1 Alkaptonuria
K1 HPLC
K1 Amperometric detection
AB Homogentisic acid is an intermediate of the metabolic breakdown of tyrosine and phenylalanine; its accumulation in body fluids suggests the break in the metabolic pathway of these compounds and related health-threatening complications. In our work, a determination method for this compound was developed using HPLC with amperometric detection on glassy carbon paste electrode. Optimum conditions were found, considering both electrode response and chromatographic parameters. Separation was performed on Kromasil 100 C18, 250 x 4.6 mm (5 μm) column using gradient elution; mobile phase consisted of acidic buffer and methanol, with methanol content changing from 5% to 30% in 10 min. Repeatability of the measurements and linearity of the electrode response were confirmed. Applicability of the method was proved by the determination in spiked urine samples.
YR 2017
FD 2017
LK http://uvadoc.uva.es/handle/10324/25814
UL http://uvadoc.uva.es/handle/10324/25814
LA eng
DS UVaDOC
RD 22-nov-2024