Determination of zinc oxide in sunscreen using ion chromatography with visible absorbance detection

Application proof note | 002564 Pharma Determination of zinc oxide in sunscreen Authors Introduction Hua Yang and Jeffrey Rohrer The United States Pharmacopeia (USP) has updated General Chapter <591> «Zinc Thermo Fisher Scientific Sunnyvale, CA, USA Keywords Dionex IonPac CS5A…

Application Update 168 Determination of Transition Metals in Complex Matrices Using Chelation Ion Chromatography INTRODUCTION Chelation ion chromatography facilitates the determination of low concentrations (µg/L and lower) of transition metals in samples including seawater, brines, estuarine waters, and a variety…

Application Note 277 Fast and Sensitive Determination of Transition Metals in Power Industry Waters Using Ion Chromatography INTRODUCTION Successful operation of a nuclear power plant (NPP) demands careful control of water chemistry as coolant systems, steam generator tubes, fuel cladding,…

APPLICATION NOTE 73340 Cupric chloride assay by ion chromatography Authors: Sachin Patil and Jeffrey Rohrer, Thermo Fisher Scientific, Sunnyvale, California, USA Keywords: Dionex IonPac CS5A column, USP monograph, pharmaceuticals, drug substance, copper Goals To develop an assay method for cupric…