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BIBTEX RIS

Determinação de metais em óleos lubrificantes, provenientes de motores de ônibus urbano, utilizando a FAAS

2010; Brazilian Chemical Society; Volume: 33; Issue: 9 Linguagem: Inglês

10.1590/s0100-40422010000900008

ISSN

1678-7064

Autores

Eva Lúcia Cardoso Silveira, Ronaldo Cunha Coelho, José Machado Moita Neto, Carla Verônica Rodarte de Moura, Edmílson Miranda de Moura,

Tópico(s)

Lubricants and Their Additives

Resumo

USING THE FAAS.This work proposed a procedure to examine ashes produced in burning lubricating oils used in public transportation, in Teresina PI.Sulphanilic acid was added to the oil samples, which were burned at 550 °C for three hours and 650 °C for two hours.The ash solutions were analyzed by FAAS and there were significant differences in the metal contents of the waste oil produced from normal car service.The quantification limits in µg g -1 were 5.9 (Fe), 4.4 (Pb), 1.7 (Ni), 2.1 (Cu), and 1.2 (Zn).The results showed positive accuracy and precision with recoveries between 88 and 108%, and RSD lower than 10%.

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