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1引宫会成了二安替比林基一（4一演）本基甲烷（DAPBM），因在试剂分子中引入电负性较强的演原子，使试剂分子的共轭。电子更易活动，从而降低了试剂的激发能，提高了试剂对某些金属离子反应的灵敏度。本文研究了DAPBM与Cr（M）的显色反应，证明该体系条件宽容，选择性较好，是
1 Palace will become two Etipy Bilinki a (4 a play) based methane (DAPBM), due to the introduction of electronegativity in the reagent molecules play a strong atomic atom, so that the conjugation of reagent molecules. Electrons are more mobile, reducing the excitation energy of the reagent and increasing the sensitivity of the reagent to some metal ions. In this paper, the color reaction of DAPBM with Cr (M) was studied, and the system was proved to be tolerant and selective