Simultaneous determination of hydrogen chloride, nitrogen oxides and sulfur oxides in combustion gas by ion chromatography

Abstract

Round robin tests were carried out by members of Association for Environmental Analysis in Osaka in order to determine the level of precision achievable for ion chromatography in the determination of hydrogen chloride, nitric oxide and sulfur dioxide in combustion gases. Although high precision was obtained on all analytes in this test, a lack of accuracy for the analytical values of nitric oxide and sulfur dioxide was recognized. In order to achieve good accuracy, it is necessary to check and eliminate all sources of systematic errors that can be detected in the laboratory.