Dual-index sequence analysis of common and variant peak ratio in far-infrared fingerprint of Pyritum.
- Author:
Liping HUANG
1
;
Jing WU
Author Information
- Publication Type:Journal Article
- MeSH: Iron; analysis; chemistry; Medicine, Chinese Traditional; Peptide Mapping; Quality Control; Sequence Analysis, Protein; Spectrophotometry, Infrared; methods; Sulfides; analysis; chemistry
- From: China Journal of Chinese Materia Medica 2011;36(11):1441-1444
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo set up the dual-indexes sequence analytical method for far-infrared fingerprint in which the dual indexes are common peak ratio and variant ration.
METHODTwo new indexes, common peak ratio and variant peak ratio, were applied and their values were calculated by means of sequential analysis, in which each Pyritum sample's far-infrared fingerprint spectra were set up and the common peak ratio sequences were arranged in order of size in comparision with other samples.
RESULTThe analytical results suggested that samples S3 and S4, S5, S6 and S7, S8 and S9 from the same region showed higher common peak ratio and lower variant peak ratio. However, the sample S1 from Anhui showed little similarity with others.
CONCLUSIONThe method, applied to distinguish Pyritum of different areas and batches, is reasonable to characterize of traditional Chinese medicine.
