The
limits of detection were between 0.8 and 2.0 ng mL
1
and the limits of quantification were between
2.0 and 4.0 ng mL
1
for both enantiomers of FLX and the enantiomers of its demethylated metabolite
NFLX. The validated method was successfully applied and proved to be robust to follow the degradation
of both enantiomers of FLX in wastewater samples, during 46 days