Zdrojový dokument:Scientific papers of the University of Pardubice. Series A, Faculty of Chemical Technology. 19/2013
ISSN:1211-5541
Abstrakt:
Voltammetric determination of butylated hydroxyanisol (BHA) antioxidant in
propan-2-ol containing 0.1 mol l–1 H2SO4 using DC voltammetry with gold
working electrode was tested. The developed method is designed for determination
of BHA in biodiesel, mineral, and synthetic oils. There were compared the results
obtained by nonlinear and linear regression of recorded data. The program OKnelin
was applied in evaluation by nonlinear regression. This method was applied
to analysis of real model samples. Analyses in biodiesels can be performed
directly, without necessity of sample pretreatment or extraction. The extraction is
necessary for analyses in oils.