苯芴酮作锗的光度分析试剂,早有研究并得到应用,但由于络合物水溶性和稳定性差,长期以来一直采取萃取法和蒸馏法。但是,手续繁琐,加之往往空白值高且不稳定,有时甚至空白值和试样值几乎相当。结果误差很大。近年来,已有采用在长链季铵盐存在下,Ge(Ⅳ)与苯芴酮、CTMAB形成三元胶束络合物以提高灵敏度, 本文针对煤中锗的测定主要干扰元 Benzofluorenone as a germanium photometric analysis reagent has long been studied and applied, but due to the poor water solubility and stability of the complex, extraction and distillation have long been taken. However, the procedure is cumbersome, and often the blank value is high and unstable, and sometimes the blank value and the sample value are almost the same. The result is very large. In recent years, there has been used in the presence of long chain quaternary ammonium, Ge (IV) and benzene fluorenone, CTMAB ternary micellar complexes to improve the sensitivity of the determination of germanium in coal, the main interference element