Ion Chromatography Assay for Ammonia in Adenosine

Lipika Basumallick and Jeffrey Rohrer Thermo Fisher Scientific, Sunnyvale, CA USA Keywords Suppressed Conductivity, Fast Separation, Pharmaceuticals, Drug Products, Dionex IonPac CS12A-5 µm Column Introduction Adenosine (Figure 1) is a naturally occurring purine nucleoside that forms from the breakdown of…

APPLICATION NOTE 73482 Determination of ammonia impurity in potassium bitartrate using ion chromatography Authors: Beibei Huang and Jeffrey Rohrer Thermo Fisher Scientific, Sunnyvale, CA Keywords: Dionex IonPac CS16 column, suppressed conductivity detection, pharmaceutical, USP Monograph, drug substance, RFIC system Goal…

Lipika Basumallick and Jeffrey Rohrer Thermo Fisher Scientific, Sunnyvale, CA, USA Key Words Suppressed Conductivity, High-Capacity Cation-Exchange Column, Dionex IonPac CS16 Column, Hemodialysis Solution, Ion Chromatography Introduction Sodium bicarbonate, or sodium hydrogen carbonate, is used in a wide variety of…

Lipika Basumallick and Jeffrey Rohrer Thermo Fisher Scientific, Sunnyvale, CA, USA Key Words High-Pressure Ion Chromatography, Suppressed Conductivity, Fast Separation, Pharmaceuticals, Drug Products, Dionex IonPac AS18-4 µm Column Introduction Adenosine (Figure 1) is a nucleoside composed of adenine attached to…