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논문 기본 정보

자료유형
학술저널
저자정보
Lin Xi Cai (Chungnam National University) Chong Woon Cho (Chungnam National University) Yan Zhao (Yantai University) Jong Seong Kang (Chungnam National University) Kyung Tae Kim (Dong-Eui University) Sang-Hun Jung (Chungnam National University)
저널정보
한국분석과학회 분석과학 분석과학 제32권 제2호
발행연도
2019.4
수록면
48 - 55 (8page)

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초록· 키워드

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The simple and effective analytical method for the quality control of a novel scalp tonic formulation has been developed and optimized in terms of HPLC conditions and sample preparation method, meanwhile, the optimization of preparation condition was using response surface methodology (RSM) based on central composite design (CCD). Oleanolic acid was selected as marker compound because of its bioactivities for alopecia therapy. The developed analytical method and extraction condition were successfully qualified. Coefficient of determination (r²) for the calibration was 0.9997 with a line passing through the origin point in the range of 0.1-100 mg/mL. The limit of detection (LOD) and the limit of quantitation (LOQ) were 17.5ng/mL and 55.0 ng/mL, respectively. The intra-day and inter-day precision of the method were 0.5-1.4 % and 0.7-1.8 % in relative standard deviation, respectively, while those accuracy were 99.5-100.9 % and 100.0- 102.2 %, respectively. The repeatability of oleanolic acid in samples ranged of 0.3-1.9 % based on peak area and 0.3-0.7 % for retention time. Recoveries from samples were 95.0-99.4 % with lower than 1.8 % in relative standard deviation. Overall, the developed analytical method will be used for quality control of this commercial scalp tonic products successfully.

목차

Abstract
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References

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