Avaliação de laboratórios brasileiros na determinação de alguns parâmetros de qualidade de biocombustíveis Evaluation of Brazilian laboratories for determining quality parameters of biofuels
| Autor: | Mary A. Gonçalves, Fabiano B. Gonzaga, Isabel C. S. Fraga, Carla M. Ribeiro, Sidney P. Sobral, Eliane C. P. Rego, Elaine B. Santana, Leonardo M. Oliveira, Viviane F. Silva, Rodrigo V. P. Leal, Dalni M. E. Santo Filho, José R. R. Siqueira, Thales P. Barbosa, Janaína M. Rodrigues, Valnei S. Cunha, Vinícius L. Skrobot, Cristiane B. Costa, Aderson R. Pessoa Júnior, Helena S. P. Carneiro, Helenice Colares, Ednéia Caliman, Márcia V. S. Alves |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 36, Iss 3, Pp 393-399 (2013) |
| Druh dokumentu: | article |
| ISSN: | 0100-4042 1678-7064 |
| Popis: | This work shows the results of a Proficiency Testing performed by a partnership between INMETRO and ANP. The performance of 49 Brazilian laboratories (using the z-score statistical test) in determining 10 quality parameters of ethanol fuel and biodiesel was evaluated. The certified reference values were provided by INMETRO, allowing a more rigorous assessment of the laboratories. For hydrous ethanol, the acidity parameter showed the lowest number of laboratories with satisfactory results (48%), while 85% of the laboratories presented satisfactory results for ethanol content. For biodiesel, the percentage of laboratories with satisfactory results ranged from 46% (kinematic viscosity) to 92% (acid number). |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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