Research output: Contribution to Journal/Magazine › Journal article › peer-review
Artifacts in the determination of the binding of americium and europium to an aquatic fulvic acid. / Lead, J. R.; Hamilton-Taylor, J.; Kelly, M.
In: Science of the Total Environment, Vol. 177, No. 1-3, 1996, p. 221-224.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Artifacts in the determination of the binding of americium and europium to an aquatic fulvic acid.
AU - Lead, J. R.
AU - Hamilton-Taylor, J.
AU - Kelly, M.
PY - 1996
Y1 - 1996
N2 - The binding of europium and americium by an aquatic fulvic acid was investigated using an equilibrium ion exchange technique (Schubert's method). The results for europium were consistent with literature data. Americium gave anomalous results for both the Do values (partition coefficient of the metal between the resin and solution phases in the absence of the fulvic acid) and D values (partition coefficient of the metal between the resin and solution phases in the presence of the fulvic acid). The values for americium were unexpectedly low and, in the case of D values, only slightly pH dependent. The cause of the discrepancy was found to be the partial dissolution of the resin or the loss of small colloidal material from the resin. The effects on the europium results were minimal due to the use of lower resin weights and higher metal concentrations.
AB - The binding of europium and americium by an aquatic fulvic acid was investigated using an equilibrium ion exchange technique (Schubert's method). The results for europium were consistent with literature data. Americium gave anomalous results for both the Do values (partition coefficient of the metal between the resin and solution phases in the absence of the fulvic acid) and D values (partition coefficient of the metal between the resin and solution phases in the presence of the fulvic acid). The values for americium were unexpectedly low and, in the case of D values, only slightly pH dependent. The cause of the discrepancy was found to be the partial dissolution of the resin or the loss of small colloidal material from the resin. The effects on the europium results were minimal due to the use of lower resin weights and higher metal concentrations.
KW - Humic material
KW - Americium
KW - Europium
KW - Ion exchange
U2 - 10.1016/0048-9697(95)04899-5
DO - 10.1016/0048-9697(95)04899-5
M3 - Journal article
VL - 177
SP - 221
EP - 224
JO - Science of the Total Environment
JF - Science of the Total Environment
SN - 0048-9697
IS - 1-3
ER -