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Flow-injection spectrophotometric determination of dipyrone in pharmaceutical formulations using ammonium molybdate as chromogenic reagent
(Taylor & Francis Inc, 2005-01-01)
A simple and rapid flow-injection spectrophotometric method is reported for the determination of dipyrone in pharmaceutical formulations. The method is based on the reaction of dipyrone with ammonium molybdate in acidic ...
Sequential injection analysis system with spectrophotometric detection for determination of norfloxacin and ciprofloxacin in pharmaceutical formulations
(Sociedade Brasileira de Química, 2011-01-01)
This work proposes a sequential injection analysis (SIA) system for the spectrophotometric determination of norfloxacin (NOR) and ciprofloxacin (CIP) in pharmaceutical formulations. The methodology was based on the reaction ...
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations
(2015-07-01)
This article describes the application and performance of an inexpensive, simple and portable device for colorimetric quantitative determination of drugs in pharmaceutical preparations. The sensor is a light detector ...
Flow-injection spectrophotometric determination of methyldopa in pharmaceutical formulations
(Elsevier B.V., 2005-07-15)
A flow-injection spectrophotometric procedure is proposed for methyldopa determination in pharmaceutical preparations. The determination is based on formation of a yellow product (measured at 410 nm) after complexation of ...
Spectrophotometric determination of sparfloxacin in pharmaceutical formulations using bromothymol blue
(Elsevier B.V., 2001-10-01)
A visible light spectrophotometric method is described for them determination of sparfloxacin in tablets. The procedure is based on the complexation of bromothymol blue 0.5% and sparfloxacin to form a compound of yellow ...
Microbiological assay for gatifloxacin in pharmaceutical formulations
(Elsevier B.V., 2006-02-13)
A simple, sensitive and specific agar diffusion bioassay for the antibacterial gatifloxacin was developed using a strain of Bacillus subtilis ATCC 9372 as the test organism. Gatifloxacin could be measured in tablets and ...
Disposable Graphite Foil Based Electrodes and Their Application in Pharmaceutical Analysis
(WILEY-V C H VERLAG GMBH, 2010)
This paper explores a new source of graphite for working electrodes, which presents advantages such as low electrical resistance, good flexibility, favorable mechanical performance, versatility to design electrodes in ...
Comparison of high performance liquid chromatography and three titrimetric methods for the determination of ceftazidime in pharmaceutical formulations
(Scientific & Academic Publishing, 2012)
Three different assays for the quality control of ceftazidime in commercial formulations were developed and compared: acidimetric, iodometric and nonaqueous methods. Method validation yielding good results and included ...
Impurities and forced degradation studies: A review
(2016-01-01)
The safety of pharmaceuticals is dependent not only on the intrinsic toxicological properties of the active ingredient, but also on the impurities and degradation products that it may contain. The presence of impurities ...
SPECTROPHOTOMETRY MICRODETERMINATION OF SOME ANTIHYPERTENSIVE DRUGS IN PURE FORM AND IN PHARMACEUTICAL FORMULATIONS
(Sociedad Chilena de Química, 2011)