Huang X R, Zhang Y S, Fu C M, Liu W N, Zhang Z H, Song W S, Huang J, Wang S X
College of Pharmacy, Hebei Medical University, Shijiazhuang 050017, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2001 Dec;21(6):840-2.
Assay of naoning pian was reported by multi-wavelength linear regression method in this paper. The program was edited by BASIC. The recoveries and RSD of pyramidon and caffeine were 98.03%-100.9%, 1.0% and 97.77%-99.39%, 0.61%, respectively. This method could be used for the determination of two components in naoning pian without separation. The method was simple, rapid, and results were satisfactory.
