Impurities test for Trimethoprim (EP-8.0 method) - For Impurities-H & I

Impurities test for Trimethoprim (EP-8.0 method) - For Impurities-E, D, G, B, J and F: SAMPLE PREPARATION: Test Solution: Dissolve 25mg of Trimethoprim in Mobile phase and dilute to 25ml with mobile phase Reference solution (a): Dilute 1ml of test…

Impurities test for Sulfadiazine (EP-8.0 method): SAMPLE PREPARATION: Solvent Mixture: 40 g/L solution of Sodium Hydroxide, Acetonitrile, Water (2:20:60 v/v/v) Test Solution: Dissolve 50 mg of Sulfadiazine in solvent mixture and dilute to 100ml with water. Reference solution (a): Dissolve…

Impurities test for Mefenamic Acid (EP- method): SAMPLE PREPARATION: Test solution: Dissolve 25 mg of Mefenamic acid in mobile phase and dilute to 25 ml with mobile phase. Reference Solution A: Dissolve 1mL of test solution to 100 mL with…

Impurities test for Metronidazole (EP-8.0 method): SAMPLE PREPARATION: Test Solution: Dissolve 0.05gm of Metronidazole in Mobile phase and dilute to 100ml with mobile phase Reference solution (a): Dilute 1ml of test solution to 100ml with mobile phase, dilute 1ml of…