Determinação de nitrito em águas utilizando extrato de flores

Aspects of visible spectrophotometry can be presented to students using simple experiments in which the color of the crude extract of Macroptilium lathyroides (L.) Urb. is bleached in the presence of nitrite ions in acidic medium. The dependence of the absorption intensity with time, the reaction co...

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Bibliographic Details
Main Authors: Ramos Luiz Antônio, Cavalheiro Carla Cristina Schmitt, Cavalheiro Éder Tadeu Gomes
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2006-01-01
Series:Química Nova
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000500037