铂族金属流动注射分析方法的研究 Ⅵ.Ir(Ⅳ)-KIO_4-α-萘酚酞体系流动注射催化分析测定铱

Studies on Flow Injection Analysis of Platinum Metals Ⅵ.Ir(Ⅳ)-KIO_4-α-Naphtholphthalein System

本文首次发现Ir(Ⅳ)对KIO_4氧化a-萘酚酞褪色具有显著的催化作用,并将这一新指示反应和流动注射分析技术相结合,建立了铱的快速、灵敏、简便的流动注射分析方法。该法对Tr(Ⅳ)的检测限为0.020μg/ml,测定的进样频率为每小时61次。

A new catalytic method has been recommended for the determination of trace Ir(Ⅳ)by flow injection analysis, The method has a detection limit for Ir(Ⅳ)of 0. 020μg/ml and permits 61 determinations per hour.