节点文献
PP(聚丙烯)二苯氨基脲树脂分离富集原子吸收法测定地质样品中的银
Determination of Silver in Ore after Separation and Concentration with Polypropylene-Diphenyl Carbazide Resin by Atomic Absorption Spectrometry
【摘要】 研究了PP (聚丙烯 ) 二苯氨基脲树脂的合成及其分离富集样品中银的条件。于 1mol/L的HCl介质中 ,银定量吸附在PP (聚丙烯 ) 二苯氨基脲树脂上 ,用 0 5mol/L硫脲溶液洗脱 ,火焰原子吸收光谱法测定。回收率在 96 4%~ 1 0 3 2 %之间。可用于实际地质样品中贵金属的分离富集与测定。
【Abstract】 The conditions for synthesis of PP(polypropylene)-diphenyl carbazide resin and separation and preconcentration of silver in geological samples have been studied.The experiments show that silver was enriched on the PP(polypropylene)-diphenyl carbazide resin columm in 1 mol/L hydrochloric acid mediator and was eluted using 0.5 mol/L sulfourea as eluant and then determined by atomic absorption spectrometry.The recovery of silver was 96.4%~103.2%.The results obtained by analysis of some precious metals in geological ore samples are satisfactory.
【关键词】 聚丙烯;
二苯氨基脲;
分离富集;
原子吸收光谱法;
银;
【Key words】 polypropylene; diphenyl carbazide; separation and concentration; AAS; silver;
【Key words】 polypropylene; diphenyl carbazide; separation and concentration; AAS; silver;
【基金】 湖南省教育厅自然科学基金资助项目 (No . 0 2C5 76 )
- 【文献出处】 广东微量元素科学 ,Trace Elements Science , 编辑部邮箱 ,2004年12期
- 【分类号】P575
- 【被引频次】2
- 【下载频次】74