Skip to main content
. Author manuscript; available in PMC: 2019 Jan 16.
Published in final edited form as: Anal Chem. 2017 Dec 21;90(2):1423–1430. doi: 10.1021/acs.analchem.7b04969

Figure 3.

Figure 3

MALDI-MSI of treated spheroids. (a) Irinotecan and folinic acid both localized to the core of spheroids following 24 hours of dosing. (b) A folinic acid metabolite was detected in the outer periphery of the spheroids, a spatial region populated by actively proliferating cells.