催化动力学光度法测定痕量铁的研究

STUDY ON THE CATALYTIC-KINETIC PHOTOMETRIC DETERMINATION OF TRACE IRON

本文研究了pH＝8．5的Na2B4O7-HCl介质中，Fe（Ⅱ）催化H2O2氧化茜素红褪色，建立了动力学光度法测定痕量Fe（Ⅲ）的新方法．本法灵敏度高，选择性好，除Mn2+、Co2+等离子外，其余共存离子基本无干扰，实测了天然水中痕量铁，结果满意．

In this paper a new catalytic - knetic photometric has been introduced with iron cataly oxidation of alizarin red by hydrogen peroxide The method is higher selectivity and precision. It has been used to determine trace iron in water with satisfactory results.