Rapid determination of ethanol extracts content of Pogostemon cablin (Blanco) Benth. by near-infrared spectroscopy / 中国药学杂志
Chinese Pharmaceutical Journal
;
(24): 2026-2028, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-860534
ABSTRACT
OBJECTIVE:
To develop a method for the determination of ethanol extracts content of Pogostemon cablin (Blanco) Benth. using near-infrared spectroscopy.METHODS:
The ethanol extracts contents of 139 samples were determined by the method of ethanol cold-soak extraction. Near-infrared spectrograms were obtained, then multiplicative signal correction, first derivative method and Savitzky-Golay filter method were used to process the spectrograms, at last the calibration model of ethanol extracts content was established by partial least squares regression analysis method.RESULTS:
The correlation coefficients, root-mean-square error of calibration, root-mean-square error of prediction and root-mean-square error of cross-validation of the calibration model of ethanol extracts content were 0.98958, 0.590, 0.623 and 0.97518, respectively.CONCLUSION:
The method is stable, accurate, and can be used to predict ethanol extracts content of Pogostemon cablin (Blanco) Benth. rapidly.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Prognostic study
Language:
Chinese
Journal:
Chinese Pharmaceutical Journal
Year:
2012
Type:
Article
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