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Determination of free furfuryl alcohol in foundry resins by chromatographic techniques
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Orientador(es)
Resumo(s)
Two chromatographic methods, gas chromatography with flow ionization detection (GC–FID) and liquid chromatography with ultraviolet
detection (LC–UV), were used to determine furfuryl alcohol in several kinds of foundry resins, after application of an optimised extraction
procedure. The GC method developed gave feasibility that did not depend on resin kind. Analysis by LC was suitable just for furanic resins.
The presence of interference in the phenolic resins did not allow an appropriate quantification by LC. Both methods gave accurate and
precise results. Recoveries were >94%; relative standard deviations were ≤7 and ≤0.3%, respectively for GC and LC methods. Good relative
deviations between the two methods were found (≤3%).
Descrição
Palavras-chave
Foundry resins Furfuryl alcohol LC GC
Contexto Educativo
Citação
Editora
Elsevier