Quantitative model for patchouli alcohol in Pogostemon cablin by near-infrared spectroscopy.
- Author:
Jialiang CAI
1
;
Nianxin GUO
;
Jieyan HUANG
;
Leilei LI
;
Shengguo JI
Author Information
- Publication Type:Journal Article
- MeSH: Chromatography, Gas; methods; Lamiaceae; chemistry; Sesquiterpenes; analysis; Spectroscopy, Near-Infrared; methods
- From: China Journal of Chinese Materia Medica 2012;37(14):2113-2116
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo establish a near-infrared spectroscopy quantitative model for rapid determination of the patchouli alcohol content in Pogostemon cablin.
METHODThe gas chromatography was adopted for determining the content of patchouli alcohol content in 102 batches of P. cablin samples. Their near-infrared spectrograms were collected and preprocessed by standard normal variate and the first derivative of Savitsky-Golay. The quantitative model of patchouli alcohol content was established by the partial least squares regression analysis.
RESULTAccording to the correction model established in this study, the root-mean-square error of calibration, the root-mean-square error of prediction and the root-mean-square error of cross-validation of the calibration model for Patchouli alcohol were 0.991 10, 0.012 9, 0.012 8 and 0.033 15, respectively.
CONCLUSIONThe near-infrared spectroscopy quantitative model established in this study is stable, accurate and reliable for the rapid determination of the content of patchouli alcohol in P. cablin.
