Artículos de revistas
White Crystal Cane Sugar Analysis Using a Noninvasive Method for Detection of Tampering with Sand
Fecha
2021-01-01Registro en:
Food Analytical Methods.
1936-976X
1936-9751
10.1007/s12161-021-01995-5
2-s2.0-85101695738
Autor
Universidade Estadual Paulista (Unesp)
Universidade Federal de São Carlos (UFSCar)
CETEC Laboratory Instruments
National Institute of Alternative Technologies for Detection Toxicological Assessment and Removal of Micropollutants and Radioactive Substances (INCT-DATREM)
Institución
Resumen
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.