TN124: Determination of Inorganic Anions in Acid Rain Using a Dedicated High-Pressure Capillary Ion Chromatography System

Instrument Type: IC

Ion chromatography is a well-established technique for determining inorganic anions in acid rain. This Technical Note describes the determination of inorganic anions in rain samples by employing high-pressure ion chromatography (HPIC) and the use of a 4 µm particle size column, the Dionex IonPac AS18-4µm.

AN1145: Determination of Halogens in Coal Using Combustion Ion Chromatography

Instrument Type: IC

When coal is burned, the exhaust contains halogens that can be released into the atmosphere as acid gases such as hydrogen chloride (HCl) and hydrogen fluoride (HF), which can harm vegetation, animals, and infrastructure directly or cause acid rain. In this application note, coal samples were combusted in the Mitsubishi AQF-2100H system and then fluorine and chlorine were accurately and precisely determined using the Dionex ICS-2100 Ion Chromatography System with a Dionex IonPac AS15 anion-exchange column set.

AU146: Determination of Anions in Acid Rain by Ion Chromatography

Instrument Type: IC

In this application update, we describe the use of automated eluent generation combined with a high-capacity, hydroxide-selective, anion-exchange column for the determination of inorganic anions in rainwater. This document updates Application Note 31 by incorporating electrolytic eluent generation with the Dionex IonPac AS18 column to eliminate the need for manually preparing the eluents off- line, and thereby increasing the IC system’s level of automation and ease of use.

AN31: Determination of Anions in Acid Rain by Ion Chromatography

Instrument Type: IC

This application note describes the established ion chromatographic method for the determination of anions in rainwater samples extended to the use of microbore columns and accessories. A rainwater standard from the National Institute of Standards and Technology (NIST) was analyzed, verifying the accuracy of the method. This method is updated in AU146 to include the use of electrolytic eluent generation and the IonPac AS18 column.