电沉积法制备镅、钚和镎的α源

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doi:10.7538/tws.2000.13.03.0135

电沉积法制备镅、钚和镎的α源

作者

@贾瑞和 $清华大学核能技术设计研究院!北京102201@刘秉仁$ 清华大学核能技术设计研究院!北京102201@梁俊福 $清华大学核能技术设计研究院!北京102201@王建晨$ 清华大学核能技术设计研究院!北京102201

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中图分类号: O646.54;;O614.35
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- 收稿日期: 2000-04-05
- 刊出日期: 2000-08-19

The Preparation of Alpha Sources for Plutonium, Neptunium and Americium by Electrodeposition

JIA Rui he,LIU Bing ren,LIANG Jun fu, WANG Jian chen [WT5”BX][ST5”BZ](Institute of Nuclear Energy Technology,Tsinghua University, Beijing 102201, China)

摘要

摘要: :以 0.1mol/ L硫酸铵为电沉积液, 在铂阳极与不锈钢阴极之间施加约 15V直流电压, 控制电流密度为 0.6 5A/ cm2, 沉积 4 0 min,镅、钚和镎可以定量地沉积在阴极上, 其收率均≥ 98%。探讨了18种有代表性的共存物对电沉积率的影响, 结果表明, 多数阳离子 (碱金属、碱土金属除外 )影响电沉积率或分辨率;少量 NO-3 、Cl-、磷酸三丁酯 (TBP)、三烷基氧膦 (TRPO)、煤油或草酸不影响沉积结果。当电解池中 α核素的量≥ 0.2 5Bq、测量时间≥ 6 0 min时, 电沉积制源和 α测量总的标准偏差可好于± 4.0 %。所选定的电沉积条件和步骤既适用于水相, 也适用于有机相样品。
- 电沉积 /
- α放射源 /
- ~(141)Am /
- ~(239)Pu /
- ~(237)Np
Abstract: Using 0.1 mol/L(NH 4) 2SO 4 as deposition solution, the voltage between plutinum anode and stainless steel cathode is controlled at about 15 V,and the current density is 0.65 A/cm 2.After electrolyzing for 40 minutes, plutonium,neptunium and americium can be deposited quantitatively on the cathode. The recovery of them is more than 98%.Influence of 18 coexisted materials are investigated, most cations influence the recovery and resolution except alkaline and alkaline earth elements at the same time,some interference limits are given. Small amount of NO - 3,Cl -,TBP,TRPO,kerosene and oxalic acid don't influence the deposition. When the activity of alpha nuclide is more than 0.25 Bq and the measuring time is more than 60 minutes, the total uncertainty of depositon and measurement is better than ±4.0%. The electrodeposition procedure is suitable for both aqueous and organic samples.
- electrodeposition /
- alpha sources /
- 241 Am /
- 239 Pu /
- 237 Np

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参考文献(10)

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电沉积法制备镅、钚和镎的α源

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出版历程

The Preparation of Alpha Sources for Plutonium, Neptunium and Americium by Electrodeposition

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出版历程

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