在有多种金属元素存在下测定铀有着广泛的兴趣,而且发表过许多方法、本文叙述的方法,供在有大量铁时于浓磷酸中使用二价铁还原六价铀测定微量铀用。此还原继之以硝酸选择氧化二价铁,最后在有Ferrozine[即3-(2-氯苯基)-5,6-二 Uranium has been of widespread interest in determining the presence of a variety of metallic elements and many methods have been published and the method described herein is intended for the determination of trace uranium using ferrous iron for the reduction of hexavalent uranium in concentrated phosphoric acid in the presence of large amounts of iron. This reduction is followed by the selective oxidation of ferrous iron with nitric acid and finally in the presence of Ferrozine [ie 3- (2-chlorophenyl) -5,6-bis