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1905年Thomson首先发现Rb具有天然放射性,1906年Campbell和Wood证实了这一发现,三十年以后Hemmendinger和Hahn等人才将Rb~(87)确定为自然界实际存在的放射性同位素,Goldschmidt首先提出应用Rb~(87)的衰变原理来测定地质体的年龄,接着Hahn和Walling讨论过利用Rb~(87)衰变成Sr~(87)来测定含铷矿物年龄的可能性,几年后他们曾利用这个方法作了第一次年龄测定,但由于当时分析技术落后以及难于精确测定Rb的衰变常数等方面的困难,此法仅处于探索阶段,并没有得到广泛的应用。自五十年代以来,由于离子交换色层分离技术,固体同位素分析质谱计
In 1905, Thomson first discovered that Rb was naturally radioactive. Campbell and Wood confirmed this discovery in 1906. Thirty years later, Hemmendinger and Hahn et al. Identified Rb 87 as a naturally occurring radioisotope in nature. Goldschmidt first proposed the use of Rb (87), Hahn and Walling discussed the possibility of determining the age of rubidium-bearing minerals using the decay of Rb 87 to Sr 87. Several years later they used This method made the first determination of age, but due to the backward analytical techniques and difficulties in accurately determining the decay constants of Rb, the method was only in the exploratory stage and was not widely used. Since the 1950s, due to ion-exchange chromatography, Solid Isotope Mass Spectrometry