论文部分内容阅读
利用铽(Ⅲ)与乙酰丙酮(AA)形成螫合物的荧光性质,拟订了测定微量铽的荧光光度法。在pH8—8.5,AA浓度为Tb~Ⅲ的300—400倍时,Tb~Ⅲ与AA形成稳定的螯合物。螯合物组成为Tb~Ⅲ:AA=
Fluorescence spectrometry for the determination of trace terbium was developed by using the fluorescence properties of terbium (Ⅲ) and acetylacetone (AA). At pH8-8.5, Tb ~ Ⅲ forms a stable chelate with AA when the AA concentration is 300-400 times that of Tb ~ Ⅲ. The chelate composition is Tb ~ Ⅲ: AA =