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

作者：Faye Sherry A^*; Richards Jason M; Gallardo Athena M; Campbell Keri R; Sudowe Ralf

来源：Journal of Radioanalytical and Nuclear Chemistry, 2017, 312(1): 37-45.

DOI：10.1007/s10967-017-5188-z

• Sequential extraction
• Extraction chromatography
• Actinide
• NIST 4354
• NIST 4357

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 Th-232, U-238, Pu-239,Pu-240 and Am-241 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.

• 出版日期2017-4
• 单位Los Alamos