A modified template matching algorithm for chromatographic fingerprint of S. miltiorrhiza Bge, a traditional Chinese herb
- Author:
Zhen-Yu ZHU
1
Author Information
1. Department of Pharmaceutical Analysis
- Publication Type:Journal Article
- Keywords:
Chinese herbal;
Chromatographic fingerprint;
Drugs;
Total sequencing template matching algorithm
- From:
Academic Journal of Second Military Medical University
2010;28(2):183-187
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To introduce a new template peak matching algorithm for calculating the similarity of chromatographic fingerprint of traditional Chinese herbs. Methods: Tanshinone II A in S. miltiorrhiza Bge of different batches were determined by HPLC and the chromatograms of them were obtained. We designated a new peak matching algorithm based on the previous algorithms, which employed a certain real chromatographic fingerprint as their template. In the new algorithm, we arranged the retention times of chromatographic peaks of all chromatograms into an ascending order, forming a template. The sorting procedure complied with the following 2 rules. First, the same peak matches the nearest corresponding peak. Second, one peak does not appear twice in the same chromatogram. Results: The new algorithm avoided the shortcomings of previous algorithm, such as mismatching and missed matching, and obtained a satisfactory outcome. Conclusion: Our new algorithm provides a basis for improving the reliability of retention time-based peak matching algorithm.
