Fig. 3
From: Quantitative analysis of galactose using LDI-TOF MS based on a TiO2 nanowire chip
Quantitative analysis of galactose using MALDI-TOF MS based on the TiO2 nanowire chip. a Mass spectra of OPD assay products with different galactose concentrations in PCB. Correlation between the intensities of mass peaks of OPD and DA and the concentration of galactose. b Correlation between the intensities of mass peaks of OPD and DA and the concentration of galactose in serum after methanol extraction. c Correlation between the intensities of mass peaks of OPD and DA and the concentration of galactose in DBS after methanol extraction