Basic Study
Copyright ©The Author(s) 2018.
World J Clin Cases. Sep 26, 2018; 6(10): 355-364
Published online Sep 26, 2018. doi: 10.12998/wjcc.v6.i10.355
Figure 1
Figure 1 Dynamic distribution of quality control samples throughout the Ultra-high performance liquid chromatography-tandem mass spectrometry analysis. Colored bars indicate the quality control samples that are projected onto the first principal component with a range from -2 SD to +2 SD. QC: Quality control; SD: Standard deviation.