This article uses an ion chromatograph to detect trace chloride ions in industrial methanol.Firstly,the methanol sample is concentrated and treated using an anion column as the analysis column and a thermal conductivity detector.The RSD for analysis and detection is 5.9%,the recovery rate is 92.0%～100%,and the detection limit is 0.02 mg/L.This can meet the needs of detecting trace chloride ions in industrial methanol.
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