Determination of long-lived actinides in soil leachates by inductively coupled plasma: Mass spectrometry

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Inductively coupled plasma -- mass spectrometry (ICP-MS) was used to concurrently determine multiple long-lived (t{sub 1/2} > 10{sup 4} y) actinide isotopes in soil samples. Ultrasonic nebulization was found to maximize instrument sensitivity. Instrument detection limits for actinides in solution ranged from 50 mBq L{sup {minus}1} ({sup 239}Pu) to 2 {mu}Bq L{sup {minus}1} ({sup 235}U) Hydride adducts of {sup 232}Th and {sup 238}U interfered with the determinations of {sup 233}U and {sup 239} Pu; thus, extraction chromatography was, used to eliminate the sample matrix, concentrate the analytes, and separate uranium from the other actinides. Alpha spectrometric determinations of {sup 230}Th, ... continued below

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16 p.

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Crain, J. S.; Smith, L. L.; Yaeger, J. S. & Alvarado, J. A. June 1, 1994.

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Inductively coupled plasma -- mass spectrometry (ICP-MS) was used to concurrently determine multiple long-lived (t{sub 1/2} > 10{sup 4} y) actinide isotopes in soil samples. Ultrasonic nebulization was found to maximize instrument sensitivity. Instrument detection limits for actinides in solution ranged from 50 mBq L{sup {minus}1} ({sup 239}Pu) to 2 {mu}Bq L{sup {minus}1} ({sup 235}U) Hydride adducts of {sup 232}Th and {sup 238}U interfered with the determinations of {sup 233}U and {sup 239} Pu; thus, extraction chromatography was, used to eliminate the sample matrix, concentrate the analytes, and separate uranium from the other actinides. Alpha spectrometric determinations of {sup 230}Th, {sup 239}Pu, and the {sup 234}U/{sup 238}U activity ratio in soil leachates compared well with ICP-MS determinations; however, there were some small systematic differences (ca. 10%) between ICP-MS and a-spectrometric determinations of {sup 234}U and {sup 238}U activities.

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16 p.

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INIS; OSTI as DE94013871; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov

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  • International conference on methods and applications of radioanalytical chemistry,Kona, HI (United States),10-16 Apr 1994

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  • Other: DE94013871
  • Report No.: ANL/CMT-ACL/CP--83255
  • Report No.: CONF-940401--14
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10160723
  • Archival Resource Key: ark:/67531/metadc1386697

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  • June 1, 1994

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  • Nov. 28, 2018, 2:33 p.m.

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  • Dec. 3, 2018, 2:43 p.m.

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Crain, J. S.; Smith, L. L.; Yaeger, J. S. & Alvarado, J. A. Determination of long-lived actinides in soil leachates by inductively coupled plasma: Mass spectrometry, article, June 1, 1994; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1386697/: accessed March 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.