【摘要】 <正>二溴苯基荧光酮(DBPF)是测定锑(Ⅲ)的灵敏显色剂,在有阳离子表面活性剂溴化十六烷基吡啶(CPB)或溴化十六烷基三甲基铵(CTMAB)存在下,用于测定痕量锑的方法己有报导。由于CPB及CTMAB难溶于水,室温低时,易自溶液中析出,且与I更多还原

【Abstract】 The condition for the complex formation of antimony with dibromopheny-Ifluorone in the presence of emulsifier OP has been studied.The complex has a maximum absorption at 570nm with the molar absorption coefficient of 6.09 x 104.Beer’s law is obeyed for 0 to 25mg Sb in 25ml. The interferences of diverse ions can be eliminated by separating antimony as SbH3. The present method has been applied to the determination of antimony in zinc, steel and soil.更多还原