Journal
ROYAL SOCIETY OPEN SCIENCE
Volume 8, Issue 9, Pages -Publisher
ROYAL SOC
DOI: 10.1098/rsos.210683
Keywords
etoposide; moxifloxacin; nalbuphine; synchronous fluorimetry; human urine
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A green synchronous spectrofluorimetric quantification method was developed for the simultaneous analysis of ETO, MOX, and NAL. The method showed good linear correlation and was successfully applied to pharmaceutical dosage forms and spiked human urine samples for estimation of the studied drugs.
Antineoplastic drugs, etoposide (ETO), are widely used in leukaemia. A patient with leukaemia has a relative infection with pneumonia treated by fluoroquinolones as moxifloxacin HCL (MOX). Because opioid analgesic as nalbuphine HCL (NAL) does not have a ceiling dose, it is used to manage the distasteful sensory in leukaemia. Consequently, green methods for synchronous spectrofluorimetric quantification of a ternary mixture of ETO, MOX and NAL were developed. The first approach relies simply on the estimation of MOX at 371 nm by conventional synchronous fluorimetric technique (Delta lambda of 60 nm). The second approach depends on applying the first derivative synchronous fluorimetric technique (Delta lambda of 60 nm) for simultaneous estimation of ETO and NAL at 257 and 273 nm, respectively. A good linear correlation was obtained in the ranges of 0.04-0.40, 0.10-1.00 and 0.50-5.00 mu g ml(-1) for MOX, ETO and NAL, respectively. Moreover, the proposed approaches were successfully applied for the estimation of the studied drugs in the pharmaceutical dosage forms. Additionally, the synchronous assessment of ETO, MOX and NAL in the spiked human urine was successfully attained by the facile protein precipitation technique. The mean % recoveries in spiked human urine were 99.49, 98.07 and 98.48 for MOX, ETO and NAL, respectively.
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