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. Author manuscript; available in PMC: 2019 Jul 29.
Published in final edited form as: Anal Chem. 2018 Apr 25;90(12):7246–7252. doi: 10.1021/acs.analchem.8b00350

Figure 4.

Figure 4.

Ion images for tentatively assigned PG species in Wnt5ad/d mouse uterine tissue on day 4 of pregnancy, (a) optical image, (b, c, and d) ion images and false color fused image for dimethyl-PGE2 (m/z 487.1604, [C22H36O5Ag]), PGA1 (m/z 443.1333, [C20H30O4Ag]+), and PGJ2 (m/z 441.1195, [C20 H32O4Ag]+), respectively. All ion images are for 109Ag adducts and have been normalized to the internal standard PGE2-d9 as discussed in the Supporting Information and Figure S9. Brighter colors correspond to higher signal intensities. Le, luminal epithelium; Ge, glandular epithelium; S, stroma; and Myo, myometrium.46