Determination of zinc oxide in sunscreen

APPLICATION NOTE 72680 Determination of zinc oxide in sunscreen using ion chromatography with visible absorbance detection Authors Hua Yang and Jeffrey Rohrer Thermo Fisher Scientific Sunnyvale, CA Keywords Dionex IonPac CS5A Column, pharmaceutical, USP monograph, monograph modernization, drug substance, drug…

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…

APPLICATION NOTE 131 Determination of transition metals at ppt levels in high-purity water and SC2 (D-clean) baths Authors Mark Laikhtman and Jeff Rohrer Thermo Fisher Scientific, Sunnyvale, CA Keywords Ion chromatography, IC, copper, zinc, absorbance, IonPac CS5A, iron, nickel, PAR,…

Application Note 108 Determination of Transition Metals in Serum and Whole Blood by Ion Chromatography INTRODUCTION The determination of transition metals in physiological fluids is of considerable interest in clinical chemistry. In recent years several studies have linked the concentrations…