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Aspectos analíticos da resposta do detector de ionização em chama para ésteres de ácidos graxos em biodiesel e alimentos

2012; Brazilian Chemical Society; Volume: 35; Issue: 2 Linguagem: Inglês

10.1590/s0100-40422012000200008

1678-7064

Jesuí Vergílio Visentainer,

Pesticide Residue Analysis and Safety

BIODIESELS AND FOODS.The analysis of fatty acid (FA) esters by gas chromatography and flame ionization detector (FID) normally uses the normalization method.However, if one FA is wrongly estimated, the results could be greatly affected.In this study, methodologies using internal standards and correction factors for the FID response are described.The results show that by using theoretical correction factors associated to the internal standardization, the quantitative analyses of the FAs are expressed in mass, increasing the accuracy and facilitating the interpretation and comparison of the results for foods and biodiesels.