Objective:To establish the HPLC method for the determination of cefoperazone and tazobactam and its related substances in cefoperazone sodium and tazobactam sodium for injection.

• 目的:用HPLC法测定注射用头孢哌酮钠他唑巴坦钠中头孢哌酮和他唑巴坦的含量及其有关物质。