TY - JOUR
T1 - Separation of lanthanides for isotopic analysis to determine neutron environment in fission reactors
AU - Sharp, Nicholas E.
AU - Mignerey, Alice
AU - McDonough, William F.
AU - Beals, Donna
PY - 2011/12/1
Y1 - 2011/12/1
N2 - The measurement of lanthanide isotopic ratios present in spent nuclear fuel can give information on conditions within a reactor. The reactor environment alters these ratios via two processes: fission production and neutron absorption. Determining such ratios requires a combination of chemical separation, via column chromatography, and analysis with multiple-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS). Separation of neodymium involves two columns, cation exchange followed by LN Resin using HCl as the eluant, with MC-ICP-MS providing measurements with ppm precision. Extending the separation to the heavier lanthanides will involve the same columns but will require HCl and alpha-hydroxyisobutyric acid (α-HIBA) as eluants. Based on previous studies α-HIBA will be used with LN resin columns as well as bis-(2-ethylhexyl) phosphoric acid (HDEHP) coated HPLC columns.
AB - The measurement of lanthanide isotopic ratios present in spent nuclear fuel can give information on conditions within a reactor. The reactor environment alters these ratios via two processes: fission production and neutron absorption. Determining such ratios requires a combination of chemical separation, via column chromatography, and analysis with multiple-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS). Separation of neodymium involves two columns, cation exchange followed by LN Resin using HCl as the eluant, with MC-ICP-MS providing measurements with ppm precision. Extending the separation to the heavier lanthanides will involve the same columns but will require HCl and alpha-hydroxyisobutyric acid (α-HIBA) as eluants. Based on previous studies α-HIBA will be used with LN resin columns as well as bis-(2-ethylhexyl) phosphoric acid (HDEHP) coated HPLC columns.
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M3 - Conference article
AN - SCOPUS:84861089135
SN - 0065-7727
JO - ACS National Meeting Book of Abstracts
JF - ACS National Meeting Book of Abstracts
T2 - 242nd ACS National Meeting and Exposition
Y2 - 28 August 2011 through 1 September 2011
ER -