NDLI: Simultaneous analysis of <sup>237</sup>Np and Pu isotopes in environmental samples by ICP-SF-MS coupled with automated sequential injection system

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Simultaneous analysis of ²³⁷Np and Pu isotopes in environmental samples by ICP-SF-MS coupled with automated sequential injection system

Content Provider	Royal Society of Chemistry (RSC)
Author	Kim, C. S. Lee, K. J. Kim, C. K.
Copyright Year	2004
Abstract	A simultaneous analytical method for 237Np, 239Pu and 240Pu has been developed using sector field inductively coupled plasma mass spectrometry (ICP-SF-MS) detection combined with an automated sequential injection (SI) separation system. The chemical purification of these actinides was carried out on an actinide-specific extraction chromatographic resin, TEVA-Spec, in an automated SI system. The similar chemical behaviors of Np and Pu on TEVA-Spec was confirmed by recovery test after treating with ascorbic acid in 5 M HNO3. TEVA-Spec maintained its re-usability, giving high and consistent chemical recovery, and showed good selectivity for Np and Pu and a low memory effect during the consecutive analysis of nine replicate samples. The high chemical recovery (>90%), reliable accuracy and repeatability of 237Np and Pu isotope purification using the SI system were proved using standard reference materials. Low detection limits of 2.5, 2.1 and 0.42 fg ml−1 were obtained for 237Np, 239Pu and 240Pu, respectively, which make it possible to analyze these nuclides in samples of soil and sediment as low as 1 g. With the exception of the preparation process required prior to loading a sample, all chemical purifications were carried out automatically by the programmed SI system, and were completed within 1 hour, which included measurement by ICP-SF-MS. This method was successfully applied to the analysis of the environmental levels of 237Np and Pu in soil, sediment and in biological samples.
Starting Page	743
Ending Page	750
Page Count	8
File Format	HTM / HTML PDF
ISSN	02679477
Volume Number	19
Issue Number	6
Journal	Journal of Analytical Atomic Spectrometry
DOI	10.1039/b400034j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Np Plutonium Plutonium-240 Inductively coupled plasma mass spectrometry Chromatography Resin Acid Nitric acid Computer data storage Isotope Sediment
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Analytical Chemistry

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