用流动注射分析法测定强碱性阴离子交换树脂的交换容量  

Determination for Exchange Capacity of Strongly Basic Anion-exchange Resins Based on Flow Injection Analysis

作　　者：李永生[1] 董宜玲[1] 

机构地区：[1]东北电力学院应用化学系

出　　处：《分析化学》2004年第6期787-790,共4页Chinese Journal of Analytical Chemistry

基　　金：教育部回国人员科研启动基金资助项目 (No .2 3 0 0 44 8)

摘　　要：建立了快速测定微量氯离子的FIA分光光度法和快速测定强碱性阴离子交换树脂交换容量的FIA法。本方法将离子交换微型柱导入树脂交换容量的测定中 ,不但获得了很好的精度 (RSD <0 .9% ) ,而且使测定效率提高了近 30倍。优选实验得到的最佳测定条件为再生液流速 0 .5mL/min ,再生剂用量 :333mL/ g,再生剂浓度 :3.0 % (W /V) ;样品液流速 :1 .5mL/min ;树脂交换容量测定温度 :2 5℃± 5℃。An automatic method for the determination of trace chloride has been developed based on flow-injection analysis (FIA). By using this method, a FIA determination approach for strongly basic anion-exchange resin performance has been also developed. This method is characterized with small device, rapid determination, easy operation and good reproducibility. It is approximately 30 times more efficient than the manual method. The optimum conditions obtained by experiments are as follows: the flow rate, dosage, and concentration of the regenerant is 0.5 mL/min, 333 mL/g, and 3.0% (W/V), respectively; flow rate of the sample water 1.5 mL/min; exchanging temperature is 25degreesC+/-5degreesC.

关 键 词：流动注射 强碱性阴离子交换树脂 工作交换容量 氯离子 水处理 

分 类 号：O657.3[理学—分析化学]