多波长K系数法测定氯芬待因复方片剂的含量

Assay of Diclofenac Sodium and Codeine Phosphate in Tablet by Multiwavelength K Factor Spectrophotometry

本文报道了多波长Ｋ系数法测定氯芬待因复方片剂中双氯芬酸钠、磷酸可待因两组分含量的研究。结果表明，双氯芬酸钠在１１．１８～２５．４０μｇ／ｍＬ、磷酸可待因在６．７８５～１５．４２μｇ／ｍＬ范围内ΔＡ值与浓度线性关系良好，回归方程分别为ΔＡ双＝－０．００６７４ｃ双－１．４１８５×１０－３，ｒ＝０．９９９６；ΔＡ＝－０．０１３０ｃ可－１．８２２×１０－３，ｒ＝０．９９９８。双氯芬酸钠和磷酸可待因的平均回收率及相对标准偏差分别为１００．１％，０．３６％；１００．７％，０．８０％。方法简便，快速，结果满意。

Assay of diclofenac sodium and codeine phosphate in tablet is reported in this paper.The calibration curves were linear over the range of 11 18 25 40 μg/mL of dicldofenac sodium and over the range of 6 785-15 42 μg/mL of codeine phosphate.The avarage racoveries and relative standard deviations of diclofenac sodium and codeine phosphate were 100 1 %,0 36% and 100 7%,0 80 %,respectively. The method is simple and rapid,and the results are satisfactory.