A catalytic kinetic spectrophotometry method for the determination of trace iron has been established based on its catalytic effect on the oxidative discolour of hydrogen peroxide with thymol blue in acid medium.

• 基于酸性介质中三价铁离子对过氧化氢氧化百里香酚蓝褪色的催化作用 ；提出了催化动力学光度法测定痕量铁的新方法 .