Simultaneous determination of some pharmaceuticals in hospital effluents Using HPLC with UV and fluorescence detectors

ABSTRACT

The development and validation of an HPLC/UV/Fluorescence [FL] detection method is described, which enables the measurement of the most consumed pharmaceuticals [methotrexate, caffeine, diclofenac, glimepiride and ibuprofen] in Jordanian hospital effluents. Separation was done on a RP-C8 column at a flow rate of 1 ml/min using 11 H2O/acetonitrile with 0.1% trifluoroacetic acid. The samples [200 ml each] were extracted and cleaned-up on C18 cartridges. Correlation coefficients of the pharmaceuticals calibration were higher than 0.997 using a UV detector and 0.996 using a fluorescence detector for methotrexate. Recoveries were ranged from 87% to 108.3%