Additional file 1 of Quantitative analysis of vitamin D using m/MALDI-TOF mass spectrometry based on a parylene matrix chip

Abstract

Additional file 1. Fig. S1. Analysis of the electrochemical property of parylene-N film by cyclic voltammetry with a redox couple of ferricyanide (Fe(CN)6 3−/4−). Fig. S2. Reproducibility of the parylene matrix chip. (a) Mass spectra of spot-to-spot reproducibility of 25(OH)D3. (b) Mass spectra of spot-to-spot reproducibility of D3. (c) Mass spectra of shot-to-shot reproducibility of 25(OH)D3. (d) Mass spectra of shot-to-shot reproducibility of D3. Fig. S3. Quantitative analysis of vitamin D using the parylene matrix chip. (a) Mass spectrum of D3 in ethanol. (b) Mass spectrum of D3 in serum