This paper deals primarily with the validation of a clean-up procedure based on anion exchange solid-phase extraction for the accurate determination of glutathione peroxidase (GPx), selenoprotein P (SelP) and selenoalbumin (SeAlb) in human serum by affinity HPLC (AF-HPLC) coupled to inductively coupled plasma-mass spectrometry (ICP-MS). In addition, the identification and the purity assessment of the GPx, SelP and SeAlb peak fractions separated by AF-HPLC is addressed by their analysis using matrix assisted laser desorption ionization-time of flight mass spectrometry.
Towards improved qualitative and quantitative determination of glutathione peroxidase, selenoprotein P and selenoalbumin in human serum by HPLC coupled to ICP-MS
Cozzi G;Cescon P;Barbante C
2010
Abstract
This paper deals primarily with the validation of a clean-up procedure based on anion exchange solid-phase extraction for the accurate determination of glutathione peroxidase (GPx), selenoprotein P (SelP) and selenoalbumin (SeAlb) in human serum by affinity HPLC (AF-HPLC) coupled to inductively coupled plasma-mass spectrometry (ICP-MS). In addition, the identification and the purity assessment of the GPx, SelP and SeAlb peak fractions separated by AF-HPLC is addressed by their analysis using matrix assisted laser desorption ionization-time of flight mass spectrometry.File in questo prodotto:
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