本文是德国特里尔大学的 C.Schleich和 G.Henze 研究痕量锗分析的系列论文之一。作者提出用萃取光度法和电热原子吸收法测定生物样品如人参和大蒜中的痕量锗。在光度法中用四氯化碳代替 MIBK 萃取锗之后,以苯基荧光酮分光光度法测定。本法具有较高的精密度,检测限为5ng Ge/ml, This article is one of a series of papers on the trace germanium analysis by C. Schleich and G. Henze of Trier University, Germany. The authors propose the determination of trace germanium in biological samples such as ginseng and garlic by extraction spectrophotometry and electrothermal atomic absorption spectrometry. After spectrophotometric determination of germanium by carbon tetrachloride instead of MIBK, phenylfluorone spectrophotometry was used. This method has a high precision, detection limit of 5ng Ge / ml,