Fe(Ⅲ)-邻苯二酚体系薄层树脂相分光光度法测定痕量铁的研究  

Study on thin layer resin phase spectrophotometry for the determination of trace Fe with FeⅢ-1,2-benzendiol system

作　　者：闫永胜[1] 黄卫红[1] 陆晓华[1] 

机构地区：[1]华中科技大学环境科学与工程系,湖北武汉430074

出　　处：《冶金分析》2003年第3期9-11,共3页Metallurgical Analysis

基　　金：河南省自然科学基金资助项目(980016)

摘　　要：提出了薄层树脂相分光光度法测定铁的新方法。Fe 与邻苯二酚形成有色络合物,将其富集于Cl-型717#阴离子交换树脂上,通过制作薄层利用光度法直接测定铁。本法选择性好,精密度高,灵敏度比水相光度法提高16倍(ε=4 8×104L·mol-1·cm-1)。实测水中铁,结果满意。A new method for the determination of Fe by thin layer resin phase spectrophotometry has been reportedThe colored complex formed by Fe*# and 1,2benzendiol is concentrated on the 717# resin, and then Fe can be determined directly by making thin layer This method has satisfactory selectivity and high precision. Its sensitivity(ε=48×104L·mol-1·cm-1)is 16 times higher than that of liquid phase spectrophotomeryFe in natural water has been determined and the results are satisfactory

关 键 词：铁 分光光度法 薄层树脂相 邻苯二酚 测定 

分 类 号：O657.3[理学—分析化学]