在磷酸介质中及加热条件下，钌（Ⅲ）对高锰酸钾氧化二安替比林对氯苯基甲烷（ＤＡｐＣＭ）显色反应有强烈的催化作用，由此建立了测定痕量钉的方法。体系的最大吸收波长为 ５００ ｎｍ，钌的含量在 ０．０～４．０μｇ／Ｌ范围内具有线性关系，检测限为 １．９４×１０－１０ｇ／ｍＬ，反应的表观活化能为 ８８．２０ ｋＪ／ｍｏｌ，反应表现速率常数为 ７．７ ０×１０－４／ｓ。本方法用于矿样中痕量钌的测定得到了满意的结果 Ruthenium (Ⅲ) has a strong catalytic effect on the color reaction of p-chlorophenyl methane (DApCM) by the oxidation of diantipyryl by potassium permanganate in phosphoric acid medium and under the heating conditions. Thus, the determination of trace nails method. The maximum absorption wavelength of the system was 500 nm, and the content of ruthenium was linear in the range of 0.0 ~ 4.0 μg / L with the detection limit of 1.94 × 10-10 g / mL. The apparent activation energy of the reaction was 88. 20 kJ / mol, the reaction rate constant was 7.7 × 10-4 / s. The method has been applied to the determination of trace ruthenium in ore samples with satisfactory results