uso de scanner em espectrofotometria de absorção molecular: aplicação em experimento didático enfocando a determinação de ácido ascórbico molecular absorption spectrophotometry using a scanner: proposal of a didactic experiment for ascorbic acid determination

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ID: 235144
2008
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Abstract
Quantitative analysis of colored substances is generally performed using a spectrophotometer for detection of radiation. However, the combination of digital images and mathematical conversion of colors is an alternative for quantitative procedures based on colored chemical reactions. This work proposes a didactic experiment using a scanner for determination of ascorbic acid in medicines based on the formation of the Prussian blue complex. Results were in good agreement with a conventional spectrophotometer method and the procedure is attractive for instrumental analysis undergraduate courses.
Reference Key
gomes2008qumicauso Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Marcos S. Gomes;Lilian C. Trevizan;Joaquim A. Nóbrega;Marcos Y. Kamogawa
Journal greece and rome
Year 2008
DOI
10.1590/S0100-40422008000600050
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000600050
Keywords
spectrophotometry ascorbic acidchemistry

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