- 作者: Kirti Thakur* and K.S. Pitre
- 作者服務機構: Department of Chemistry, Dr. H.S. Gour University, Sagar (M.P.) 470 003, India
- 中文摘要: Direct Current (DC) and Differential Pulse (DP) Polarographic methods have been developed for the qualitative as well as quantitative analysis of ellagic acid in plant products (i.e. strawberries) and pharmaceutical formulations (Ellagic insurance formula). Ellagic acid produces a well-defined polarographic wave/peak in pyridine hydrochloride at pH 6.8 ± 0.1 with E1/2 /Ep = -1.298 V vs. SCE. The wave/peak height is found to be proportional to the concentration of ellagic acid. The developed procedure was used for the analysis of ellagic acid in an extract of strawberries (Fragaria x ananassa) and pharmaceutical formulations. Statistical treatment of the observed polarographic data revealed high accuracy and good precision of determination. The work has been supplemented by FTIR screening of the sample. The percentage of ellagic acid in pharmaceutical formulations was determined by the developed method, which is in close agreement with the labeled amount.
- 英文摘要: --
- 中文關鍵字: Ellagic acid; Strawberries; Formulation; Polarographic (DCP, DPP) analysis.
- 英文關鍵字: --