AN297: Determination of Total and Potential Sulfate and Total Chloride in Fuel-Grade Butanol Per ASTM D7319-09

Instrument Type: IC

Here we present a direct injection IC approach to determine total and potential sulfate and total chloride in butanol intended as a gasoline additive. This IC method is consistent with the procedure described in ASTM D7319-09, a standard intended for the analysis of ethanol samples containing 1.0–20 mg/kg of total or potential inorganic sulfate and 1.0–50 mg/kg of inorganic chloride. This method also has the sensitivity to meet the specifications described in ASTM D4806-11A.

AN296: Assay of Fuel-Grade Butanol for Total and Potential Sulfate and Total Chloride Per ASTM D7328-07

Instrument Type: IC

Described here is a simple ion chromatography (IC) method to determine total and potential sulfate and total chloride in butanol used as a gasoline additive. It is consistent with the procedure described in ASTM D7328-07, which is intended for the analysis of ethanol samples containing 0.55–20.0 mg/L total sulfate, 4.0–20 mg/L potential sulfate, and 0.75–50.0 mg/L chloride, but can also be applied to butanol samples.