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LC–MS chromatograms of synthetic standards of sterol sulfates under the analytical conditions described in this work. (A) desmosterol sulfate; (B) cholesterol sulfate; (C) 24-methylene cholesterol sulfate; (D) brassicasterol sulfate; (E) dihydrobrassicasterol sulfate; (F) campesterol sulfate; (G) fucosterol sulfate; (H) stigmasterol sulfate; (I) β-sitosterol sulfate. Values near each peak represent retention time and molecular mass as obtained by ion extract mode.
