Determination of Water-soluble Chlorides of Electrolytic Capacitor Paper by Ion Chromatography
The electrolytic capacitor paper was pretreated by the extraction method,and then the water-soluble chloride was determined by ion chromatography.The results showed that the mass concentration of chloride ion had a linear relationship with the peak area in the range of 0.02～1.00 µg/mL,and the correlation coefficient was greater than 0.999.The sample pretreatment method was optimized.The detec-tion limits of method were 0.06 mg/kg,the relative standard deviations were 7.04％(n=6),the recoveries were 97.62％～101.95％,and the relative standard deviations were 2.33％.The method had low detection limit,the sample pretreatment was simple and environmentally friendly.The results were satisfactory for practical sample analysis,and it was suitable for the determination of water soluble chloride in elec-trolytic capacitor paper.
万方数据
维普
