Abstract
Pararosaniline dye (P) is a pigment which has a significant role in analysis of chemical substances and gram-positive and negative bacteria, as well as other microorganisms. Potentiometric essays of P have shown that the colorant is a weak monoprotic acid (pKa= 8,78); and the spectrophotometry allows to estimate its molar absorption coefficient as 1,48x104 mol-1cm-1L. The analytical curve for a determination of P has linearity between 7,36x10-6 and 7,36x10-5mol L-1, and the methodology was application in biological samples.
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Da Silva Junior, H., De Freitas, G. R. S., Néri, D. R. F., Da Silva Pereira, F. R., De Farias, R. F., & Pereira, F. C. (2010). Monitoramento do corante pararosanilina em amostras biolÓgicas. Ecletica Quimica, 35(3), 147–156. https://doi.org/10.26850/1678-4618EQJ.V35.3.2010.P147-156
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