Document Type
Article (Restricted)
Publication Date
1-1-2011
Abstract
1D- and 2D-IR with thermal perturbation was utilized in this study for the macroscopic fingerprinting of Phyllagathis rotundifolia. Conventional FTIR spectroscopy showed limited spectral differences for the species with a closely related species, Phyllagathis praetermissa.However, the visual 2D-IR spectra were able to enhance IR absorptions and generate characteristic IR fingerprint for P. rotundifolia. This approach combined with PCA is also applicable to detect mixtures of P. rotundifolia and P. praetermissa. By using this non-destructive IR fingerprinting, the identification and quality control of P. rotundifolia can be achieved more effectively.
Keywords
Phyllagathis rotundifolia, Melastomataceae, Fourier transform infrared spectroscopy (FTIR), Two-dimensional infrared correlation spectroscopy (2D-IR), Principal component analysis (PCA).
Divisions
CHEMISTRY
Publication Title
Journal of Molecular Structure
Volume
1006
Publisher
Elsevier
Additional Information
doi:10.1016/j.molstruc.2011.09.023