Fig. 3: Spatial distribution of individual phospholipid species in sparse LOESS-normalized ion images.
From: Resolving multi-image spatial lipidomic responses to inhaled toxicants by machine learning
Ion images representing pixel intensities of annotated phospholipids in negative mode, including (a) PE 18:0/22:6, (b) PI 36:4, and (c) PA 16:0/16:0. Ion images correspond to a representative sample from the female control group. Ion images for each lipid species from each individual sample is included in Supplementary Fig. 4. Bar = 1 mm. No acyl chain information was available for PI 36:4 based on the LC-MS/MS reference library used for peak annotation.
