Determination of Benzenesulfonic Acid Counterion in Amlodipine Besylate by Ion Chromatography

Suparerk Tukkeeree,1 Chanita Chantarasukon,1 and Jeff Rohrer2 1 Thermo Fisher Scientific, Bangkok, Thailand; 2Thermo Fisher Scientific, Sunnyvale, CA, USA Key Words Goal Dionex IonPac AS20 Column, Dionex IonPac AS22 Column, Counterion, Drug Product, RFIC, Pharmaceutical Introduction Tolterodine is a quaternary…

Thermo Scientific Dionex Reagent-Free Ion Chromatography (RFIC) System Capabilities The power to increase productivity RFIC System Technology Since the introduction of eluent generation in 1998, Thermo Fisher Scientific has continued to simplify ion chromatography (IC) while expanding the capabilities and…

Application Note 201 Determination of Chloride and Sulfate in Methanol Using Ion Chromatography Introduction The increase in costs and demand for petroleum combined with potential supply shortages have led to renewed concerns about worldwide dependence on oil.1 In addition, burning…

APPLICATION UPDATE 163 Determination of trace anions in organic solvents using matrix elimination and preconcentration Authors Terri Christison and Jeff Rohrer Thermo Fisher Scientific Sunnyvale, CA Keywords Ion chromatography, IC, anion contamination, corrosion, acetate, chloride, formate, isopropanol, lactate, matrix elimination,…