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在Fe(Ⅲ)-二苯胺磺酸钠-过氧化氢反应体系中,引入不同酸度的乙酸钠盐酸缓冲液作为反应介质,探讨了pH2.61和pH4.30条件下测定铁离子的试验条件与方法特性.反应介质的酸度是控制该体系完全反应的基本条件,适当选择反应介质的酸度,既可保持本体系足够的灵敏度,又易控制反应条件.
Fe (Ⅲ) - diphenylamine sulfonate - hydrogen peroxide reaction system, the introduction of different acidity sodium acetate hydrochloride buffer as the reaction medium, to explore the pH2.61 and pH4.30 conditions for the determination of iron ions in the test conditions and The acidity of the reaction medium is the basic condition to control the complete reaction of the system. Appropriate choice of the acidity of the reaction medium can not only maintain the sufficient sensitivity of the system, but also easily control the reaction conditions.