首页 | 本学科首页   官方微博 | 高级检索  
     检索      

树脂负载固相反射散射吸光光度法测定铌
引用本文:赵中一,韩峭峰,罗菊仙,张转勇.树脂负载固相反射散射吸光光度法测定铌[J].理化检验(化学分册),2001,37(1):31-33.
作者姓名:赵中一  韩峭峰  罗菊仙  张转勇
作者单位:中国地质大学应用化学系,
摘    要:氯磺酚S是光度法测铌的最佳试剂之一,选用717型阴离子交换树脂富集试液中铌与氯磺酚S的配合物,用自行设计的反射散附件与722型分光光度计联用直接测定树脂相上的反射散射值AR,设计了一种新的固相反射散射光度法。并将方法用于低合金钢、化探样、磁铁矿样品中低含量铌的测定,取得较好的效果。

关 键 词:固相反射散射吸光光度法    氯磺酚S  测定方法
文章编号:1001-4020(2001)01-0031-03
修稿时间:1999年12月18

RESIN-LOADING SOLID PHASE REFLECTIVE DIFFUSION PHOTOMETRIC DETERMINATION OF NIOBIUM
ZHAO Zhong-Yi,HAN Qiao-feng,LOU Ju-xian,ZHANG Zhuan-yong.RESIN-LOADING SOLID PHASE REFLECTIVE DIFFUSION PHOTOMETRIC DETERMINATION OF NIOBIUM[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2001,37(1):31-33.
Authors:ZHAO Zhong-Yi  HAN Qiao-feng  LOU Ju-xian  ZHANG Zhuan-yong
Abstract:A solid phase reflective diffusion photometric method for the determination of niobium is studied in this paper. Chlorosulfophenol S is used as a chromogenic reagent for Nb(V), and the complex formed in a HCltartaric acid medium is adsorbed on a definite amount of 717 anion exchange resin. The reflective absorbance AR of the anion exchange resin is then determined at a wavelength of 630nm using a self-made reflective diffusion accessory installed with the 722 spectrophotometer. The method has been used in the determination of niobium in the alloy steel and in geological samiples with satisfactory results.
Keywords:Solid phase reflective diffusion photometry  Niobium  Chlorosulfophenol S
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号