Certified reference material to water content determination in bioethanol fuel

Bioethanol is a strategic biofuel in Brazil. Thus, a strong metrological basis for its measurements is required to ensure the quality and promote its exportation. Recently, Inmetro certified a reference material for water content in bioethanol. This paper presents the results of these studies. The c...

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Veröffentlicht in:	Química Nova 2012, Vol.35 (5), p.1011-1015
Hauptverfasser:	Rodrigues, Janaína M., Guimarães, Evelyn F., Sousa, Marcus V. B., Silva, Viviane F., Fraga, Isabel C. S., Souza, Vanderléa, Cunha, Valnei S.
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Schlagworte:	bioethanol fuel certified reference material CHEMISTRY, MULTIDISCIPLINARY water content
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creator	Rodrigues, Janaína M. Guimarães, Evelyn F. Sousa, Marcus V. B. Silva, Viviane F. Fraga, Isabel C. S. Souza, Vanderléa Cunha, Valnei S.
description	Bioethanol is a strategic biofuel in Brazil. Thus, a strong metrological basis for its measurements is required to ensure the quality and promote its exportation. Recently, Inmetro certified a reference material for water content in bioethanol. This paper presents the results of these studies. The characterization, homogeneity, short-term stability and long-term stability uncertainty contributions values were 0.00500, 0.0166, 0.0355 and 0.0391 mg g-1, respectively. The certificated value for water content of bioethanol fuel was (3.65 ± 0.11) mg g-1. This CRM is the first and up to now the unique in the world.
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subjects	bioethanol fuel certified reference material CHEMISTRY, MULTIDISCIPLINARY water content
title	Certified reference material to water content determination in bioethanol fuel
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