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	Extraction and Determination of Thorium and its Application on Geologic Samples using Trioctyl Phosphine Oxide
	Afifi, S. Y.; Mustafa, M. M.; El Sheikh, E. M.; Gado, M. A. S.
通讯作者	Afifi, SY
来源期刊	ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS
ISSN	1110-0451
出版年	2012
卷号	45 期号:3 页码:36-+
英文摘要	The extraction of thorium from aqueous solution was studied using the organic extractant trioctyl phosphine oxide (TOPO) dissolved in cyclohexane. The parameters affecting the extraction, determination and stripping of Th(IV) included type of extractant, shaking time, extractant concentration, pH, aqueous to organic phase ratio (A/O), temperature, certain interfering ions and stripping agents. Best results were at 0.08M TOPO, pH 1, 2: 1 A/O, shaking time 4 min. at 22 +/- 1 degrees C. The best factors for stripping process were 2M H2SO4, 4:1 A/O, shaking time 4 min. at 22 +/- 1 degrees C. The factors studied were followed by application of the extraction system to extract and determine thorium content from certified reference samples and geologic samples collected from South Eastern Desert, Egypt. Also thorium was separated in a laboratory scale from a representative sample of the geologic comprised six samples in a pure state as thorium oxide. Statistics were performed to evaluate the importance of the data collected and therefore set limitations on each step of the analysis. The final results indicate that the method has high precision and accuracy in addition to be fast and of selective manner.
英文关键词	Thorium Separation Thoron Trioctyl Phosphine Oxide
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000422536000003
WOS关键词	SOLVENT-EXTRACTION ; NITRIC-ACID ; SEPARATION
WOS类目	Nuclear Science & Technology
WOS研究方向	Nuclear Science & Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/330160
作者单位	[Afifi, S. Y.; El Sheikh, E. M.; Gado, M. A. S.] Nucl Mat Author, POB 530 El Maadi, Helwan, Egypt; [Mustafa, M. M.] Benha Univ, Fac Sci, Dept Chem, Kalubia, Egypt
推荐引用方式 GB/T 7714	Afifi, S. Y.,Mustafa, M. M.,El Sheikh, E. M.,et al. Extraction and Determination of Thorium and its Application on Geologic Samples using Trioctyl Phosphine Oxide[J],2012,45(3):36-+.
APA	Afifi, S. Y.,Mustafa, M. M.,El Sheikh, E. M.,&Gado, M. A. S..(2012).Extraction and Determination of Thorium and its Application on Geologic Samples using Trioctyl Phosphine Oxide.ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS,45(3),36-+.
MLA	Afifi, S. Y.,et al."Extraction and Determination of Thorium and its Application on Geologic Samples using Trioctyl Phosphine Oxide".ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS 45.3(2012):36-+.