Wang Y, Liu S
Department of Pharmacy, Shen Yang Pharmaceutical University, 110015 Shenyang.
Guang Pu Xue Yu Guang Pu Fen Xi. 2001 Apr;21(2):254-5.
Phenacetin, amidopyrine and caffeine in compound chlorophenamine tablet were determined by iterative target transformation factor analysis. The results are satisfactory. The mean recoveries and relative standard deviation are 100.4%, 0.83%, 99.2%, 0.77%, 99.4%, 0.69% respectively.