Develop a way to estimate the hydro chloride ephedrine, using the technology of molecular absorption uv-vis

Abstract

The molecular absorption uv-vis is a new analytical ,rapid and sensitive method for determination of ephedrine hydrochloride(EPH)in its pure shape &in the pharmaceutical through forming charge transfer complex .the calibration curve of uv-vis can be used for the estimating usage through the linear range which is submitted to “(Lambert-Beer law)” ;sensitivity =(0.5 – 6 ) ppm ,slop=0.1458, RSD =0.55, rec = 98.4 , r = 0.9984 and D.L =0.112 ppm. This method was applicated to the determination of EPH in pharmaceuticals depending on these results.