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本文报道了对甲基二溴偶氮胂的合成,该显色剂在酸性介质中与稀土元素产生高灵敏度显色反应,大多数常见元素不干扰,所拟分析方法已成功地应用于小麦和铝合金中稀土总量的测定
In this paper, the synthesis of p-methyldibromoarsenazo was reported. The chromogenic reagent produced high sensitivity color reaction with rare earth elements in acid medium. Most of the common elements did not interfere. The proposed method has been successfully applied to the determination of wheat and Determination of total rare earths in aluminum alloys