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1964年,在北京召开的“全国测试基地会议”上我们曾指出;在汞盐存在下,铱的硫酸络合物对 Ce(Ⅳ)—As(Ⅲ)反应有强烈的催化作甩,并可用以催化比色测定铱。这一发现为矿石中痕量铱的测定提供了一个有效的手段。我们据此拟定的测定方法已在国内使用多年,并见诸书刊。1966年后已陆续有了一些铱的催化比色法发表,但是此法仍然是比较好的。本文报导实验情况和结果。
We pointed out at the National Test Base Conference held in Beijing in 1964 that there is a strong catalytic effect of the sulfuric acid complex of iridium on the reaction of Ce (IV) -As (III) in the presence of mercury salts, Catalytic colorimetric determination of iridium. This finding provides an effective measure for the determination of trace amounts of iridium in ores. The method of determination we have drawn up has been used domestically for many years and has been published in various publications. After 1966 there have been some catalytic colorimetric Iridium published, but this method is still relatively good. This article reports the experimental results and results.