Determination of p-Toluenesulfonic Acid in Water-Insoluble Drugs

Thunyarat Phesatcha,1 Suparerk Tukkeeree,1 and Jeff Rohrer2 Thermo Fisher Scientific, Bangkok, Thailand; 2Thermo Fisher Scientific, Sunnyvale, CA, USA 1 Key Words Pharmaceutical, Dionex IonPac CS19 Column, Reagent-Free Ion Chromatography Introduction Methylamine or monomethylamine (MMA) is widely used in different stages…

APPLICATION NOTE 94 Determination of trace cations in concentrated acids using AutoNeutralization pretreatment and ion chromatography Authors Terri Christison and Jeff Rohrer Thermo Fisher Scientific, Sunnyvale, CA Keywords Dionex ICS-5000+, acid neutralization, ion chromatography, IC, chemical manufacturing, industrial plating, computer,…

APPLICATION NOTE 220 Determination of inorganic anion impurities in a water-insoluble pharmaceutical by ion chromatography with suppressed conductivity detection Introduction The Unites States Food and Drug Administration (U.S. FDA) is responsible for protecting consumers by ensuring that pharmaceuticals are safe…

Terri Christison, David Moore, Linda Lopez, Jeff Rohrer Thermo Fisher Scientific, Sunnyvale, CA Key Words Standard Bore, Microbore, Drinking Water, Integrion, IonPac AS22 column, IonPac AS22-Fast-4µm column Goal Provide instructions for installing a fast anion application on the Thermo Scientific™…