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本文采用P_(204)[二(2-乙基己基)磷酸]萃淋树脂柱分离法,仅一步将干扰元素与稀土分离,测定了鼠肝中14个稀土元素。 解剖白鼠取出肝脏,经匀浆后冷冻干燥,准确称取适量试样封装于石英瓶中,与稀土混合标准一起在3×10~(13)n·cm~(-1)·s~(-1)中子流强下照射20—30小时后,用硝酸浸取,用HNO_3-HClO_4(7+3)分解,转化成0.1N HCl溶液后倒入P_(204)柱上进行吸附,用30ml 0.1N HCl洗
In this paper, P_ (204) [di (2-ethylhexyl) phosphate] extraction resin column separation method, only one step separation of interfering elements and rare earth, determination of 14 rare earth elements in rat liver. The livers were dissected and the liver was removed. After homogenization, the samples were lyophilized and accurately weighed. The samples were accurately weighed in a quartz flask and mixed with a standard of 3 × 10 ~ (13) n · cm ~ (-1) s ~ 1) The neutron flux is irradiated for 20-30 hours, then it is leached with nitric acid, decomposed with HNO3-HClO4 (7 +3), transformed into 0.1N HCl solution, and then poured into P204 column for adsorption. 0.1N HCl wash