Year: 2025
Type: article
Abstract: A preliminary methodology for the determination of biodiesel content in commercial diesel fuel by ultraviolet and visible absorption spectroscopy (UV-Vis) was developed, with the aim of exploring its potential application in optical sensors for monitoring the diesel/biodiesel mixtures in heavy vehicles. Absorbance of visible light between 400 nm and 500 nm showed a linear response of the optical signal as a function of the biodiesel content for the investigated volume concentration range of biodiesel (varying from 0 % to 20 %). Multivariate analysis was used to validate the construction of different calibration curves, differentiated by the origin of feedstocks for the starting pure biodiesel and diesel components, and to determine the optimal wavenumber for performing ordinary linear regression. A narrow range of the visible spectrum around 450 nm provided the best coefficient of correlation for all calibration curves. The effects of the supplier of base biodiesel and diesel components used to obtain the calibration curves on the predictions of the univariate model were also assessed.
Source: ACTA IMEKO
Authors: Simone De Britto, Erlon Henrique Martins Ferreira, Daniel Giacometti, Oleksii Kuznetsov
Language: English
Subfield: Analytical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4414644086
FWCI:
Cites:
Cited by:
Related to: