Determination of Potential Chloride and Sulfate in Denatured Ethanol Samples Using a Compact Ion Chromatography System

Instrument Type: IC

This method shows the direct determination of potential chloride and sulfate in a peroxide-treated denatured ethanol sample, previously published in Application Update 194. In this record, the method is executed on an Integrion IC system.

AU142: Improved Determination of Trace Anions in High Purity Waters by High-Volume Direct Injection

Instrument Type: IC

This document describes the use of the EG40 potassium hydroxide (KOH) eluent generator with the IonPac AS15-5µm column for trace anion analysis. The EG40 generates high-purity and carbonate-free hydroxide eluents on-line to improve the method performance for determination of target analytes at trace levels. The high-volume direct injection technique is used to achieve sensitive detection at sub-µg/L levels. The analytes are detected by suppressed conductivity with a 2-mm ASRS-ULTRA operated in the Gas Assisted Recycle mode. This Update expands on work presented in Dionex Technical Note 48.

AN153: Monitoring for Trace Anion Contamination in the Extracts of Electronic Components.

Instrument Type: IC

This application note focuses on the determination of ionic contamination of disk drive components. A comprehensive anion analysis of drive components prior to manufacturing can significantly reduce the incidence of corrosion and head-to-disk interface failures. The anions most routinely monitored are fluoride, chloride, bromide, nitrate, sulfate, and phosphate. High-volume direct injection and preconcentration are the two methods used to increase IC sensitivity. This note describes the use of these approaches to determine trace anion contaminants in extracts of disk drive components.