Avaliação de laboratórios brasileiros na determinação de alguns parâmetros de qualidade de biocombustíveis
| Autor: | Sidney Pereira Sobral, Márcia V. S. Alves, Cristiane B. Costa, Vinícius L. Skrobot, Janaína Marques Rodrigues, Fabiano Barbieri Gonzaga, Thales de Paula Barbosa, Viviane F. Silva, Elaine B. Santana, Helena S. P. Carneiro, Carla de Matos Ribeiro, José Renato Real Siqueira, Valnei S. Cunha, Aderson R. Pessoa Júnior, Isabel Cristina Serta Fraga, Eliane Cristina Pires do Rego, Leonardo Mesquita de Oliveira, Mary Ane Gonçalves, Ednéia Caliman, Helenice Colares, Rodrigo V. P. Leal, Dalni Malta do Espírito Santo Filho |
|---|---|
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Química Nova v.36 n.3 2013 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ Química Nova, Vol 36, Iss 3, Pp 393-399 (2013) Química Nova, Volume: 36, Issue: 3, Pages: 393-399, Published: 2013 |
| ISSN: | 0100-4042 |
| DOI: | 10.1590/s0100-40422013000300008 |
| 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: | OpenAIRE |
| Externí odkaz: |
|