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研究了在Ｍｎ（Ⅱ）存在下，我们合成的新试剂二安替比林－（间－乙氧基）－苯基甲烷（ＤＡｍＥＭ）与Ｃｅ（Ⅳ）生成的橙黄色化合物．该化合物最大吸收位于４８０ｎｍ，表现摩尔吸收系数ε＝１．９×１０~４Ｌ·ｍｏｌ－１ｃｍ－１，化合物至少可以稳定８ｈ．服从比尔定律范围为 ４～３００θｇ／Ｌ，用于镁合金中痕量铈的测定，结果满意．
The orange-yellow compounds of diamtepirin- (m-ethoxy) -phenylmethane (DAmEM) and Ce (Ⅳ) were synthesized in the presence of Mn (Ⅱ) The maximum absorption of the compound at 480nm, showing the molar absorption coefficient ε = 1.9 × 10 ~ 4L · mol-1cm-1, the compound can be stable at least 8h. Obedience Beer’s law range of 4 ~ 300θg / L, for the determination of trace cerium in magnesium alloy, the results are satisfactory.