研究目的
Investigating the discrimination of wood species using a combination of near-infrared reflectance spectroscopy (NIRS) and laser-induced breakdown spectroscopy (LIBS) with chemometrics for data analysis.
研究成果
The combination of LIBS and NIRS with chemometrics proved effective for wood species discrimination, with some minor misclassifications related to sample group overlapping or wide dispersion within groups.
研究不足
The study had a relatively low number of samples, and the LIBS instrument used had a relatively low spectral resolution for atomic spectroscopy.
1:Experimental Design and Method Selection:
The study employed a combination of LIBS and NIRS for wood species discrimination, using chemometrics for data analysis.
2:Sample Selection and Data Sources:
Forty-two wood samples from six different species were analyzed.
3:List of Experimental Equipment and Materials:
A home-made LIBS instrument and a PerkinElmer Spectrum GX Fourier transform NIRS instrument were used.
4:Experimental Procedures:
Samples were pretreated by polishing, and spectra were acquired under specific conditions for both LIBS and NIRS.
5:Data Analysis Methods:
Data from both techniques were merged, pretreated, and analyzed using PCA and PLS-DA.
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