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CPAmCF_3为新的不对称的偶氮氯膦型试剂。该试剂已用于钢铁中铈组稀土以及铁基和铝基合金中稀土总量的测定。除上述α型显色反应的研究和应用外,该试剂与稀土元素的β型显色反应亦已有报道,但未见用于铀的测定。本文研究了CFAmCF_3与铀的显色反应条件。该反应灵敏度高,为目前测定铀高灵敏度的方法之一。已用于铀矿样分析,结果较为满意。
CPAmCF_3 is the new asymmetric chlorophosphine reagent. This reagent has been used for the determination of rare earths in rare earths of cerium group and iron and aluminum alloy in steel. In addition to the above-mentioned studies and applications of the α-type color reaction, the β-type color reaction of the reagent with the rare earth element has also been reported, but has not been used for the determination of uranium. In this paper, the color reaction conditions of CFAmCF_3 with uranium were studied. The reaction sensitivity is high, one of the methods for the determination of high sensitivity of uranium. Has been used for uranium ore sample analysis, the results are more satisfactory.