Author(s): Nascimento, Paloma Andrade Martins [UNESP] ; Sperança, Marco Aurelio [UNESP] ; Romano Beletti, Douglas ; Pereira-Filho, Edenir Rodrigues ; Pereira, Fabíola Manhas Verbi [UNESP]
Date: 2021
Persistent ID: http://hdl.handle.net/11449/205965
Origin: Oasisbr
Subject(s): Cane sugar; Chemometrics; EDXRF; PLS; Quality assurance; Tampering
Made available in DSpace on 2021-06-25T10:24:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01
In this study, a noninvasive and highly analytical frequency method for the detection of tampering with sand (SA) of white crystal cane sugar (WCCS) was developed using energy-dispersive X-ray fluorescence (EDXRF) combined with chemometric strategies. Sixty-four solid mixture samples with variations in the content of sand were evaluated. The normalization strategy to the unit length (‖b‖) in combination with summed spectral data from EDXRF was applied as a strategy to enhance analytical information. The predicted data using a partial least squares (PLS) model were highly correlated with reference values (R2 = 0.9889), and the standard error of cross-validation (SECV) was 2.7 wt% using two latent variables (LV) corresponding to 97% of the explained variance of the data.
Group of Alternative Analytical Approaches (GAAA) Bioenergy Research Institute (IPBEN) Institute of Chemistry São Paulo State University (UNESP)
Group of Applied Instrumental Analysis (GAIA) Department of Chemistry Federal University of São Carlos (UFSCar), P.O. Box 676
CETEC Laboratory Instruments
National Institute of Alternative Technologies for Detection Toxicological Assessment and Removal of Micropollutants and Radioactive Substances (INCT-DATREM)
Group of Alternative Analytical Approaches (GAAA) Bioenergy Research Institute (IPBEN) Institute of Chemistry São Paulo State University (UNESP)
