Determination of diphenhydramine and ephedrine nasal drops by dual-wavelength spectrometry.
- Received Date: 2002-04-03
Abstract: OBJECTIVE To develop a method for determinating the contents of diphenhydramine hydrochloride and ephedrine hydrochloride in nasal drops.METHODS The dual-wavelength spectrophotometric method was used for eliminating matual interference.RESULTS The method was linear and reproducible.The average recovery was 100.29%, RSD=0.82(n=9) for diphenhydramine hydrochloride and 99.92%, RSD=0.90(n=9) for ephedrine hydrochloride respectively.CONCLUSION The method was simple,rapid and accurate.
Citation: | HUANG Xiong-wei. Determination of diphenhydramine and ephedrine nasal drops by dual-wavelength spectrometry.[J]. Journal of Pharmaceutical Practice and Service, 2002, (5): 295-297. |