Fig. 1
From: Presence of antibiotics in children’s urine: a silent risk beyond drinking water
Illustrative LC–MS/MS chromatograms of positive samples. (I) Urine sample. Concentrations (ng/L): A. Metronidazole (6990); B. Doxycycline (585); C. Azithromycin (2380). (II) Water sample. Concentrations (ng/L): A. Lincomycin (42); B. Sulfamethoxazole (244); C. Ciprofloxacin (286).
