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极谱法测定痕量钍
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作者 Y.Castrillejo E.Barrado +2 位作者 r.pardo P.S.Batanero 刘然 《世界核地质科学》 CAS 1989年第1期85-88,共4页
研究了一种间接测量痕量钍的方法,其途径是通过形成11-钼钍磷酸,然后用有机溶剂萃取分离,用碱反萃取,再利用钼对过氧化氢极谱还原的催化效应来测量钼。检测限可达0.067 mg/l。
关键词 极谱法测定 催化效应 间接测量 还原波 单纯形法 有机溶剂萃取 滴汞电极 极谱仪 检测限 高铁酸
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Solid Material Development with the Argonne National Laboratory ECR Ion Sources
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作者 R.Vondrasek R.Scott r.pardo 《Chinese Physics C》 SCIE CAS CSCD 北大核心 2007年第S1期101-104,共4页
Development work with solid materials at the Argonne National Laboratory ECR ion sources has been focused on two areas-introduction of materials with low vapour pressures,and increasing the beam intensities of heavy b... Development work with solid materials at the Argonne National Laboratory ECR ion sources has been focused on two areas-introduction of materials with low vapour pressures,and increasing the beam intensities of heavy beams(i.e.-lead and uranium).An induction oven,with a demonstrated operating temperature extending to 2000℃,has been utilized to produce a Ti-50 beam with an intensity of 5.5eμA (12+).In addition,a refinement of the sputter technique has been employed which has resulted in a 42% improvement in lead beam intensities.Details of the induction oven as well as the refined sputter technique will be presented. 展开更多
关键词 ECR ion source SPUTTER INDUCTION OVEN
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