【摘要】 DSPCF在盐酸介质中与X+3^-反应,XO₃^-将其氧化而使红色逐渐减退。利用此退色反应,探讨了测定IO₃^-、BrO₃^-、ClO₃^-的条件,提出了测定微量IO₃^-、BrO₃^-、CIO₃^-的新办法。可用来测定化学试剂中的微量XO₃^-离子,其表观摩尔吸光系牧达10⁴数量级。方法简便、快速,选择性好。更多还原

【Abstract】 In hydrochloric acid medium, XO₃^- can oxidize DSPCF, and so discolours it. The experimental conditions for the determination of IO₃^-, BrO₃^- and ClO₃^- have been established and they can be used to determine trace XO₃^- in chemical reagents ε=1×10⁴. The methods are simple, fast and selective.更多还原