Determination of sulfur dioxide in traditional Chinese medicine by derivative fluorometry.
- Author:
Yue PENG
1
;
Xue-Lian LI
;
Ling YIN
;
Hong-Ping CHEN
;
Dan-Qing FAN
;
You-Ping LIU
Author Information
- Publication Type:Journal Article
- MeSH: Drugs, Chinese Herbal; analysis; Fluorescence; Medicine, Chinese Traditional; Sensitivity and Specificity; Species Specificity; Spectrometry, Fluorescence; methods; Sulfur Dioxide; analysis; Temperature
- From: China Journal of Chinese Materia Medica 2013;38(2):212-216
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo establish a derivative fluorometry method for the determination of sulfur dioxide residues in traditional Chinese medicine.
METHODThe optimal derivation condition was established. The fluorescence intensity was detected at excitation wavelength of 321 nm, and emission wavelength of 384 nm.
RESULTA linear relationship was obtained between the fluorescence intensity and the addition of reference substance in the range of 0.999 7-17.99 nmol with a correlation coeffient of 0.999 9, and the average recovery was 102.3% with RSD 4.6%.
CONCLUSIONThis method is simple and sensitive with quick and correct result. It can provide a reference for the determination of sulfur dioxide residues in traditional Chinese medicine.
