Fig. 4: High quantification precision of 4D peak detection.
From: A mass spectrum-oriented computational method for ion mobility-resolved untargeted metabolomics
a–c The distributions of relative standard deviations (RSDs) of 4D peaks from human urine samples detected by Met4DX (a), MS-DIAL (b), and MetaboScape (c). d, e Log-log scatter plot of peak intensities between sample replicates 2 and 4 obtained from Met4DX (d) and MS-DIAL (e) for human urine samples. The color represents the peak density, in which yellow means dense and blue means sparse. f All pairwise Pearson correlations of peak intensities in 6 replicates of human urine samples using Met4DX (upper triangle) and MS-DAL (lower triangle). The urine samples were measured in positive mode (n = 6 technical replicates).
