Rapid Identification of Dens Draconis and its Adulterants by NIR Correlation Coefficient Method / 中国药师
China Pharmacist
;
(12): 619-622, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-445952
ABSTRACT
Objective:
To develop a qualitative analysis model for the fast identification of Dens Draconis and its adulterants by NIR correlation coefficient method.Methods:
On the basis of the traditional morphological identification, the spectra were collected u-sing the fiber accessory of a near-infrared spectroradiometer. The reference spectra were set up using the NIR spectra of certified Dens Draconis. The characteristic spectral section was chosen and the appropriate threshold was set to establish a qualitative analysis model for the rapid identification of Dens Draconis and its adulterant.Results:
The spectral section of 5 000-4 200 cm-1 was selected as the characteristic spectral section, the correlation coefficient of Dens Draconis and its adulterant was calculated in training set samples, and 92. 67% was used as the threshold. Totally 10 batches of validation set samples were validated the qualitative analysis model, and the prediction accuracy was 90%.Conclusion:
The method has good prediction ability, and can be used in the rapid identification of Dens Draconis and its adulterant.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Diagnostic study
/
Prognostic study
/
Qualitative research
Language:
Chinese
Journal:
China Pharmacist
Year:
2014
Type:
Article
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