Laser Ablation Electrospray Ionization Time-of-Flight Mass Spectrometry for Direct Analysis of Biological Tissue

Figure 4

Typical mass spectra of (a) renal cortex, (b) renal pelvis, (c) renal sinus fat, and (d) the PCA plot, which explains 95.5% of the variance using three components.

(a)

(b)

(c)

(d)