我们在研究Pb-Ag体系的同时,分析了一些铁陨石中铅同位素的组成和浓度。对银的研究使我们获得了一系列酸洗方法。这些方法对清除地球物质的污染似乎是有成效的。我们希望这种方法也能清除铅的污染,从而可以较好地评价铁陨石(包括那些已知的具有~(107)Ag过剩的铁陨石)的金属相和硫化物相中固有 While studying the Pb-Ag system, we analyzed the composition and concentration of Pb isotopes in some iron meteorites. The research on silver led us to a series of pickling methods. These methods seem to be effective in removing pollution from the earth’s matter. We hope this method will also eliminate the lead contamination so that the metal and sulfide phases inherent to iron meteorites, including those known to have ~ 107 Ag excess, are intrinsic to the sulphide phase