Impurities test for Tranexamic Acid (EP method)

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 Cefradine (EP- method): SAMPLE PREPARATION: Reference solution-a: Dissolve 3.0 mg of Impurity-B in Mobile phase A and dilute to 50 ml with mobile phase A. Reference solution-b: Dissolve 3.0 mg of Cefradine and Cefalexin monohydrate in Mobile…

Impurities test for Cefalexin (EP-8.0 method): SAMPLE PREPARATION: Test solution: Dissolve 50 mg of the substance to be examined in Mobile phase A and dilute to 50.0 ml with mobile phase A Reference solution (a): Dissolve 10 mg of D-phenylglycine…

APPLICATION NOTE 72880 Determination of spectinomycin and related impurities in spectinomycin dihydrochloride Authors Jingli Hu and Jeffrey Rohrer Goal Thermo Fisher Scientific Sunnyvale, CA To demonstrate that spectinomycin content can be determined and related impurities separated with a Thermo Scientific™…