AN104: Analysis of Personal Care Products by Ion Chromatography

Instrument Type: IC

Ion chromatography (IC) with conductivity detection complements traditional HPLC-UV pharmaceutical separations. IC is especially useful when the analytes do not contain chromophores, or when it is desirable to determine chromophoric and nonchromophoric molecules in a single run. This application note addresses the use of IC for the analysis of personal care products, including compounds found in some toothpastes, hair permanent solutions, and acne medications. Several examples illustrate the variety of separations that can be achieved using IC.

AN254: Determination of Total Phosphorus in Wastewater Using Caro's Reagent and Ion Chromatography

Instrument Type: IC

Here, two IC methods are presented for the determination of phosphorus content in wastewater. The sample's organic and inorganic phosphorus are converted to orthophosphate by treatment with Caro’s reagent before analysis by IC. Converting organic and inorganic phosphorus to orthophosphate allows phosphorus to be determined by ion chromatography (IC) with suppressed conductivity detection.