The determination of trace amounts of rare earth elements in nuclear pure thorium dioxide by ultrasonic nebulizing ICP spectrometry

Qiying Fang; Zongzhi Huang; Hongdi Zhou

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The determination of trace amounts of rare earth elements in nuclear pure thorium dioxide by ultrasonic nebulizing ICP spectrometry

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- The determination of trace amounts of rare earth elements in nuclear pure thorium dioxide by ultrasonic nebulizing ICP spectrometry
- Nuclear Techniques Vol. 08, Issue 3, (1985)
- 作者机构：
  
  中国科学院上海原子核研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：15 March 1984，
  
  Published：1985
- 稿件说明：
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Qiying Fang, Zongzhi Huang, Hongdi Zhou. The determination of trace amounts of rare earth elements in nuclear pure thorium dioxide by ultrasonic nebulizing ICP spectrometry[J]. Nuclear techniques, 1985, 08(3): 57-58,76,77.
DOI：

Qiying Fang, Zongzhi Huang, Hongdi Zhou. The determination of trace amounts of rare earth elements in nuclear pure thorium dioxide by ultrasonic nebulizing ICP spectrometry[J]. Nuclear techniques, 1985, 08(3): 57-58,76,77. DOI：

摘要

本文报导了超声雾化等离子体光谱法测定核纯二氧化钍中痕量稀土。基体钍与痕量稀土分离方法有萃取法

[1~5]

、离子交换法

[6]

和反相色层法

[7]

，其中萃取法比较简便快速。本文采用在HNO

体系中以D

EHPA-TBP-OK协同萃取钍、分离稀土，用NH

CNS、磺基水杨酸隐蔽干扰稀土测定的杂质即Fe、Cu、Ca、A1、Mg，然后调pH为5.5，用PMBP-苯萃取稀土，4

HC1反萃，ICP-AES法

测稀土，用钇作内标，此分析法灵敏度高，速度快。

Abstract

A method is described to determine trace amounts of rare earth elements (REE) in nuclear pure thorium dioxide using desolvating ultrasonic nebulizing ICP spectrometry. The D

EHPA-TBP-OK synergic extraction system was used for separation of matrix Th and REE.

After thorium was separated from REE

the REE was extract by PMBP-benzene and using NH

CNS and thiosalicylate as masking agent for A1

Cu. Then REE were back-extracted into 4N HC1 and determined by ICP-AES using Y as internal standard. Thesensitivity and speed of this method is high.

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references

彭春霖，科学通报， 4 ， 170 （ 1973 ）。

方企嫈等，核技术， 2 , 58 （ 1981 ）。

武汉大学化学系等编著，稀土元素分析化学，科学出版社， 1981 年。

Р. Л. Слюсаqева , Жур. Ана. Хим ., 26 , 5 , 894 （ 1971 ）.

Shoji Sato , ICP Information Newsletter , 8 , （ 3 ）, 143 （ 1982 ）.

A. Bolton , ibid , 7 , 10 , 498 （ 1982 ）.

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