![Multi-isotopic determination of plutonium (^2^3^9Pu, ^2^4^0Pu, ^2^4^1Pu and ^2^4^2Pu) in marine sediments using sector-field inductively coupled ... [An article from: Analytica Chimica Acta]](https://www.ebooknetworking.net/books/B00/0PD/bigB000PDU2GO.jpg)
Multi-isotopic determination of plutonium (^2^3^9Pu, ^2^4^0Pu, ^2^4^1Pu and ^2^4^2Pu) in marine sediments using sector-field inductively coupled ... [An article from: Analytica Chimica Acta]
Book Details
PublisherElsevier
ISBN / ASINB000PDU2GO
ISBN-13978B000PDU2G0
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Description
This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Among the transuranic elements present in the environment, plutonium isotopes are mainly attached to particles, and therefore they present a great interest for the study and modelling of particle transport in the marine environment. Except in the close vicinity of industrial sources, plutonium concentration in marine sediments is very low (from 10^-^4ngkg^-^1 for ^2^4^1Pu to 10ngkg^-^1 for ^2^3^9Pu), and therefore the measurement of ^2^3^8Pu, ^2^3^9Pu, ^2^4^0Pu, ^2^4^1Pu and ^2^4^2Pu in sediments at such concentration level requires the use of very sensitive techniques. Moreover, sediment matrix contains huge amounts of mineral species, uranium and organic substances that must be removed before the determination of plutonium isotopes. Hence, an efficient sample preparation step is necessary prior to analysis. Within this work, a chemical procedure for the extraction, purification and pre-concentration of plutonium from marine sediments prior to sector-field inductively coupled plasma mass spectrometry (SF-ICP-MS) analysis has been optimized. The analytical method developed yields a pre-concentrated solution of plutonium from which ^2^3^8U and ^2^4^1Am have been removed, and which is suitable for the direct and simultaneous measurement of ^2^3^9Pu, ^2^4^0Pu, ^2^4^1Pu and ^2^4^2Pu by SF-ICP-MS.
Description:
Among the transuranic elements present in the environment, plutonium isotopes are mainly attached to particles, and therefore they present a great interest for the study and modelling of particle transport in the marine environment. Except in the close vicinity of industrial sources, plutonium concentration in marine sediments is very low (from 10^-^4ngkg^-^1 for ^2^4^1Pu to 10ngkg^-^1 for ^2^3^9Pu), and therefore the measurement of ^2^3^8Pu, ^2^3^9Pu, ^2^4^0Pu, ^2^4^1Pu and ^2^4^2Pu in sediments at such concentration level requires the use of very sensitive techniques. Moreover, sediment matrix contains huge amounts of mineral species, uranium and organic substances that must be removed before the determination of plutonium isotopes. Hence, an efficient sample preparation step is necessary prior to analysis. Within this work, a chemical procedure for the extraction, purification and pre-concentration of plutonium from marine sediments prior to sector-field inductively coupled plasma mass spectrometry (SF-ICP-MS) analysis has been optimized. The analytical method developed yields a pre-concentrated solution of plutonium from which ^2^3^8U and ^2^4^1Am have been removed, and which is suitable for the direct and simultaneous measurement of ^2^3^9Pu, ^2^4^0Pu, ^2^4^1Pu and ^2^4^2Pu by SF-ICP-MS.
