研究目的
To fast quantify the adulterant content in honey using laser-induced breakdown spectroscopy (LIBS) combined with chemometric methods.
研究成果
LIBS combined with chemometric methods provides a fast and simple approach for detecting honey adulteration. The best models for detecting adulteration ratios were achieved by SR-PLSR and VIP-PLSR, with RMSE values indicating good predictive performance.
研究不足
The study focused on two types of honey adulteration (HFCS and rape honey) and may not cover all possible adulterants. The model transferability to other types of honey and adulterants needs further study.
1:Experimental Design and Method Selection:
LIBS combined with chemometric methods was used for fast quantification of honey adulteration.
2:Sample Selection and Data Sources:
Acacia honey mixed with high fructose corn syrup (HFCS) and rape honey at different percentages.
3:List of Experimental Equipment and Materials:
A laboratory-assembled LIBS device, pulse laser (Vlite 200, Beamtech), Echelle spectrograph (ME 5000, Andor), intensified charge coupled device (ICCD, DH334T-18F-03, Andor).
4:Experimental Procedures and Operational Workflow:
Samples were prepared by mixing acacia honey with HFCS and rape honey at different percentages, then analyzed by LIBS.
5:Data Analysis Methods:
Partial least squares regression (PLSR) and feature selection methods (GA, VIP, SR) were used for data analysis.
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