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用铀—233作同位素稀释剂,用MAT261型固体同位素质谱仪测定铀的同位素比值,以同位素稀释质谱法测定天然水中微量铀.
Uranium-233 as isotope diluent, with MAT261 solid isotope mass spectrometry uranium isotope ratio determination of isotope dilution mass spectrometry trace uranium in natural water.