[Application of FTIR spectroscopy to the analysis of eleven kinds of Dendrobium].
OBJECTIVE
To establish an FTIR method for the analysis of Dendrobium.


METHODS
Using fourier transform infrared spectrometer to record the characteristic spectra of eleven samples of Dendrobium, and to compare the spectra by PCA (principal component analysis).


RESULTS
The FTIR spectra of the upper part of the stem displayed significant differences between fresh and dried samples of Dendrobium. On the other hand, differences were observed in the spectra of the middle and lower parts of stems of D. guangxieuse when compared to other species.


CONCLUSIONS
The method of applying PCA to FTIR analysis is a rapid and dependable method for comparing samples of Dendrobium.
Lv
Xian-kang
XK
State medicinal Group Hanszhou Xinya Co., LTD., Hangzhou 310003, China.
Cheng
Cun-gui
CG
Yang
Guo-ping
GP
Jin
Yong
Y
Ye
Han
H
Xu
Dong-wei
DW
D031667:Dendrobium / Q000737:chemistry* / Q000145:classification; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry* / Q000145:classification; D025341:Principal Component Analysis / Q000379:methods; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*