Flow-batch analyser for preparation of calibration standard mixtures in simultaneous multicomponent spectrometric analysis

dc.creatorVISANI, Valeria
dc.creatorBARROS, Sara Regina Ribeiro Carneiro de
dc.creatorDANTAS FILHO, Heronides Adonias
dc.creatorALMEIDA, Luciano Farias
dc.creatorLIMA, Ricardo Alexandre Cavalcanti de
dc.creatorFRAGOSO, Wallace Duarte
dc.creatorSALDANHA, Teresa Cristina Bezerra
dc.creatorARAÚJO, Mário César Ugulino de
dc.date.accessioned2013-08-07T16:53:31Z
dc.date.available2013-08-07T16:53:31Z
dc.date.issued2009
dc.description.abstractThe application of multivariate calibration techniques to multicomponent analysis by UV-VIS molecular absorption spectrometry is a powerful tool for simultaneous determination of several chemical species. However, when this methodology is accomplished manually, it is slow and laborious, consumes high amounts of reagents and samples, is susceptible to contaminations and presents a high operational cost. To overcome these drawbacks, a flow-batch analyser is proposed in this work. This analyser was developed for automatic preparation of standard calibration and test (or validation) mixtures. It was applied to the simultaneous determination of Cu2+, Mn2+ and Zn2+ in polyvitaminic and polymineral pharmaceutical formulations, using 4-(2-piridilazo) resorcinol as reagent and a UV-VIS spectrophotometer with a photodiode array detector. The results obtained with the proposed system are in good agreement with those obtained by flame atomic absorption spectrometry, which was employed as reference method. With the proposed analyser, the preparation of calibration and test mixtures can be accomplished about four hours, while the manual procedure requires at least two days. Moreover, it consumes smaller amounts of reagents and samples than the manual procedure. After the preparation of calibration and test mixtures, 60 samples-1 can be carried out with the proposed flow-batch analyser.pt_BR
dc.identifier.citationVISANI, Valeria, et al. Flow-batch analyser for preparation of calibration standard mixtures in simultaneous multicomponent spectrometric analysis. Eclética Química, São Paulo, v. 34, n. 2, p. 37-47, 2009. Disponível em: <http://www.scielo.br/pdf/eq/v34n2/05.pdf>. Acesso em: 18 jul. 2013. <http://dx.doi.org/10.1590/S0100-46702009000200005>.pt_BR
dc.identifier.issn1678-4618
dc.identifier.issn0100-4670
dc.identifier.urihttps://repositorio.ufpa.br/handle/2011/4092
dc.language.isoengpt_BR
dc.rightsAcesso Aberto
dc.subjectAnalisador de fluxo de lotespt_BR
dc.subjectEspectroscopia de ultravioleta e visívelpt_BR
dc.subjectAnálise multicomponente simultâneapt_BR
dc.subjectAnálise farmacêuticapt_BR
dc.titleFlow-batch analyser for preparation of calibration standard mixtures in simultaneous multicomponent spectrometric analysispt_BR
dc.typeArtigo de Periódicopt_BR

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