Determination of chloride ions in polymetallic ores by cation exchange resin separation ion chromatography
The samples of polymetallic ores were sintered with a mixed flux of sodium carbonate and zinc oxide,the extraction was heated with water,and a large amount of the matrix was separated with a Ion-exchange resin static exchange and determined by ion chromatography,sodium carbonate and Sodium bicarbonate were used as eluent.The chloride ions were separated from other anions in the eluent.The conductivity of the chloride ions was determined by conductivity detector to determine the retention time and the peak area,the content of chloride ion in the sample was calculated.The linear range of the method is 10mg/kg～10000mg/kg,and the detection limit is 6.62mg/kg.The method has high sensitivity and good stability.
国家科技期刊平台
NSTL
万方数据
