阳离子交换树脂分离-离子色谱法测定碳酸稀土和氯化稀土中硫酸根
Ion Chromatographic Determination of Sulfate Ion in Carbonates and Chlorides of Rare Earth Elements After Separation by Cation Exchange Resin
摘 要
用阳离子交换树脂柱上交换法将试样中硫酸根与稀土离子分离.交换柱上流出溶液再经AS 9阴离子分离柱(250 mm×4 mm)分离,用9.0 mmol·L-1碳酸钠溶液作流动相.定量测定中采用电导检测器和标准曲线法,该方法的检出限为0.05 mg·L-1,测定下限为0.03%.对硫酸根质量分数为3.19%的试样作精密度试验,测得相对标准偏差(n=11)为1.63%,回收率试验的结果在94.2%~112.6%之间.
阳离子交换树脂
稀土元素(Ⅲ)的碳酸盐和氯化物
硫酸根
Ion chromatography
Cation exchange resin
Carbonates and chlorides of rare earth elements
Sulfate ion
Abstract
Rare earth cations were separated on cation exchange resin column,and the anions (including SO2-4) in the effluent solution from the ion-exchange column,were further separated on AS 9 anion separation column (4 mm×250 mm) with 9.0 mmol·L-1 Na2CO3 solution as mobile phase.Conductivity detector was used in the measurements,and calibration curve was used in the determination.Detection limit of the method was found to be 0.05 mg·L-1,and the limit of determination was found as 0.03%.Value of RSD (n=11) found was 1.63% for SO2-4 content of 3.19%.Values of recovery obtained were in the range of 94.2%-112.6%.
中图分类号 O657.31
所属栏目 工作简报
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收稿日期 2006/7/11
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备注钮树芳(1972-),内蒙古乌兰察布市人,硕士,讲师,主要研究方向为离子色谱法测定稀土产品中阴离子含量.
引用该论文: NIU Shu-fang,HAO Qian,LI Wen-xian. Ion Chromatographic Determination of Sulfate Ion in Carbonates and Chlorides of Rare Earth Elements After Separation by Cation Exchange Resin[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2007, 43(12): 1017～1019
钮树芳,郝茜,李文先. 阳离子交换树脂分离-离子色谱法测定碳酸稀土和氯化稀土中硫酸根[J]. 理化检验－化学分册, 2007, 43(12): 1017～1019
被引情况:
【1】詹文毅,江国庆,姜国民,葛存旺,田澍,李建华, "紫外分光光度法直接测定常量硫酸根",理化检验－化学分册 52, 159-162(2016)
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参考文献
【1】GB/T 16484.12-1996氯化稀土、碳酸稀土化学分析方法 硫酸根量的测定[S]．
【2】Small H,Stevens T S,Bauman W C.Direct determination of bromide ions in sea water by ion chromatography using water as the mobile phase[J].Anal Chem,1975,47:1801．
【3】牟世芬,刘克纳.离子色谱[M].北京:化学工业出版社,2000．
【4】刘珍.化验员读本(上册)[M].4版.北京:化学工业出版社,2004:125-129．
【5】陈建华,崔海容,谢建锋.阳离子交换树脂分离电位滴定法测定碳酸钡中微量氯[J].理化检验-化学分册,2004,40(5):292,294．
【2】Small H,Stevens T S,Bauman W C.Direct determination of bromide ions in sea water by ion chromatography using water as the mobile phase[J].Anal Chem,1975,47:1801．
【3】牟世芬,刘克纳.离子色谱[M].北京:化学工业出版社,2000．
【4】刘珍.化验员读本(上册)[M].4版.北京:化学工业出版社,2004:125-129．
【5】陈建华,崔海容,谢建锋.阳离子交换树脂分离电位滴定法测定碳酸钡中微量氯[J].理化检验-化学分册,2004,40(5):292,294．
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