摘要
研究了PAN-S浸渍树脂对Co2+的吸附性能。Co2+吸附pH值范围为4.7～9.2,最佳pH值为5.4;达到最大吸附容量需25 min,树脂对Co2+平衡吸附容量是98 mg/g干树脂,达到最大吸附容量平衡时用0.1 mol/L的HNO3洗脱,洗脱率达98%。该方法建立了PAN-S-树脂富集-分离钴离子的分光光度测定方法,结果令人满意。
This paper has studies theresearch of PAN-S impregnating resin on the properties of the adsorption of Co^2＋ . The adsorption pH range of Co^2 ＋ is 4.7 - 4.7 and the optimum pH is 5.4 ; the time needed to reach maximum adsorption capacity of Co^2 ＋ is 25 rain and resin adsorption capacity for Co^2 ＋ balance is 98 mg/g dry resin; elution rate was 98% when the adsorption capacity reached maximum balance and eluted with 0.1 mol/L HNO3. The spectrophotometric method of PAN-S-resin enrichment and separation of cobalt ions were established and satisfactory results were obtained.
出处
《环境监控与预警》
2014年第4期26-29,共4页
Environmental Monitoring and Forewarning
