Development of a standardized sequential extraction protocol for simultaneous extraction of multiple actinide elements

Sequential extraction is a useful technique for assessing the potential to leach actinides from soils; however, current literature lacks uniformity in experimental details, making direct comparison of results impossible. This work continued development toward a standardized five-step sequential extr...

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Veröffentlicht in:	Journal of radioanalytical and nuclear chemistry 2017-04, Vol.312 (1), p.37-45
Hauptverfasser:	Faye, Sherry A., Richards, Jason M., Gallardo, Athena M., Campbell, Keri R., Sudowe, Ralf
Format:	Artikel
Sprache:	eng
Schlagworte:	actinide Actinides Analysis Chemistry Chemistry and Materials Science Diagnostic Radiology Extraction extraction chromatography Hadrons Heavy Ions Inorganic Chemistry Leaching NIST 4354 NIST 4357 Nuclear Chemistry Nuclear Physics Physical Chemistry RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY Reference materials Sediments (Geology) sequential extraction Uranium
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Beschreibung
Zusammenfassung:	Sequential extraction is a useful technique for assessing the potential to leach actinides from soils; however, current literature lacks uniformity in experimental details, making direct comparison of results impossible. This work continued development toward a standardized five-step sequential extraction protocol by analyzing extraction behaviors of 232 Th, 238 U, 239,240 Pu and 241 Am from lake and ocean sediment reference materials. Results produced a standardized procedure after creating more defined reaction conditions to improve method repeatability. A NaOH fusion procedure is recommended following sequential leaching for the complete dissolution of insoluble species.
ISSN:	0236-5731 1588-2780
DOI:	10.1007/s10967-017-5188-z