新显色剂3,5-二溴-4-偶氮对苯二酚苯基荧光酮的合成及其分析性能研究

Synthesis of 2,3,7-trihydroxy-9-[3,5-dibromo 4 (2,5 dihydroxy)phenylazo] phenylfluorone and its color reaction with various high Valence metal ion

介绍了新试剂 ２，３，７－ 三羟基－ ９－ ［３，５－ 二溴－ ４－ （２，５－ 二羟基）苯偶氮］苯基荧光酮（ Ｄ Ａ Ｒ Ｐ Ｆ）的合成通过元素分析、红外光谱和紫外可见吸收光谱等方法测试。

The new reagent of 3,7 trihydroxy 9 [3,5 dibromo 4 (2,5 dihydroxy) phenylazo]phenylfluorone (DARPF) was synthesized and characterized by elemental analysis, infrared and ultraviolet spectra.The chromogenic properties of color reaction of DARPF with various high valence metal ion were studied.