Now showing items 1-10 of 1228
Development and application of a portable instrument for drugs analysis in pharmaceutical preparations
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 ...
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 ...
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 ...
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
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)
Spectrophotometric determination of ceftazidime in pharmaceutical preparations using neocuproin as a complexing agent
(Taylor & Francis Inc, 2008-01-01)
A simple and reproducible spectrophotometric method for the assay of ceftazidime with neocuproin-copper(II) reagent has been developed. The procedure is based on the drug in an acidic medium, subsequent formation of yellow ...
Revisiting concepts, attitudes and expectations of Brazilian pharmacists to the practice of pharmaceutical care: A qualitative perspective
Background: Research has shown advancements in pharmaceutical care services to the population, with a change in practitioners’ professional behaviors. Objective: This study aimed to assess present attitudes, expectations ...