Fig. 1From: Evaluation of the diagnostic potential of urinary N-Acetyltyramine-O,β-glucuronide (NATOG) as diagnostic biomarker for Onchocerca volvulus infection a UPLC-MS/MS Calibration curves of NATOG prepared in water and urine. b UPLC-MS/MS chromatogram of a urine sample with an endogenous NATOG concentration of 0.31 μM. c LC-Fluo Calibration curve of NATOG prepared in waterBack to article page