AN1052: Determination of Chloride and Sulfate in Gasoline-Denatured Ethanol

Instrument Type: IC

This is a fast, simple, direct-injection IC method with eluent generation to determine total and potential sulfate and chloride in gasoline-denatured ethanol samples. This approach is consistent with ASTM D7319-12. The study shows good column ruggedness with no column deterioration over more than 400 sample injections. The method described can reliably quantify sulfate and chloride at 65 μg/L and 18 μg/L, respectively-concentrations that are well below the ASTM D4806 specifications of 4 mg/L for sulfate and 40 mg/L for chloride.