Fig. 6From: Quantitative analysis of vitamin D using m/MALDI-TOF mass spectrometry based on a parylene matrix chipStatistical analysis between enzyme immunoassay and MALDI-TOF mass spectrometry. a Comparison of 25(OH)D3 in serum by enzyme immunoassay and MALDI-TOF mass spectrometry. b Bland–Altman test. c Passing–Bablok regressionBack to article page