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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。
It is the first time to find that Ir (Ⅳ) catalyzes the fading of a-naphthalenephthalide by KIO_4. By combining this new indication reaction and flow injection analysis, a rapid, sensitive and simple flow injection analysis method for iridium . The limit of detection of Tr (Ⅳ) by this method was 0.020 μg / ml, and the injection frequency was determined as 61 times per hour.