Figure 1

Extracted ion chromatogram (quantifiers only) of 100 μg/L standard mixture in ESI positive. a) caffeine, b) trimethoprim, c) sucralose, d) primidone e) sulfamethoxazole, f) meprobamate, g) triamcinolone, h) hydrocortisone, i) prednisone, j) simazine, k) carbamazepine, l) fluoxetine m) dexamethasone n) TCEP, o) atrazine, p) testosterone, q) norethisterone, r) TCPP, s) norgestrel, t) benzophenone, u) diphenhydramine, v) diltiazem w) DEET. Qualifier ion and surrogate standard chromatograms have been removed for clarity.