Comparison of ion chromatography and a continuous‐flow technique for analysis of chloride and sulfate in plant samples

A comparison of ion chromatography and continuous‐flow colorimetry for the determination of chloride and sulfate content in water extracts of plants is presented. Results of the two methods correlate well. The relationships are linear, with a slope of 0.72 for sulfate and 0.73 for chloride. The correlations indicate that the techniques and instruments used are compatible so that the regression equations are satisfactory for conversion of data.