Ion chromatographic method for monitoring sulphate in ice-cores

Abstract

Using ion chromatography a method was developed for monitoring sulphate in firn and ice cores. With the present method, the sample was loaded automatically in the column without a loop. The results obtained with the monitoring procedure were compared with those obtained with conventional method. A practical detection limit of 0,4 μEq/L of SO₄^- was reached when 2 ml of samples were loaded in the column.