Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Artefacts in sorption experiments with trace metals.
AU - Giusti, L.
AU - Hamilton-Taylor, J.
AU - Davison, W.
AU - Hewitt, CN
PY - 1994
Y1 - 1994
N2 - Laboratory studies of trace metal sorption by natural and synthetic particles are frequently unrealistic due to the concentrations of sorbate and sorbent being orders of magnitude above those found in nature. Undertaking such experiments under more realistic conditions requires careful quality assessment of the methods used. A series of systematic sorption experiments, based on filtration and measurement by atomic absorption spectrometry (AAS), showed that metal losses to container walls and filters were unavoidable in solutions which emulate freshwaters. These errors can be corrected by using multiple control solutions which estimate metal losses at the appropriate pH and solution concentrations. Without such corrections, sorption can be appreciably overestimated.
AB - Laboratory studies of trace metal sorption by natural and synthetic particles are frequently unrealistic due to the concentrations of sorbate and sorbent being orders of magnitude above those found in nature. Undertaking such experiments under more realistic conditions requires careful quality assessment of the methods used. A series of systematic sorption experiments, based on filtration and measurement by atomic absorption spectrometry (AAS), showed that metal losses to container walls and filters were unavoidable in solutions which emulate freshwaters. These errors can be corrected by using multiple control solutions which estimate metal losses at the appropriate pH and solution concentrations. Without such corrections, sorption can be appreciably overestimated.
KW - Sorption artefacts
KW - Trace metals
KW - Metal solubility
U2 - 10.1016/0048-9697(94)90314-X
DO - 10.1016/0048-9697(94)90314-X
M3 - Journal article
VL - 152
SP - 227
EP - 238
JO - Science of the Total Environment
JF - Science of the Total Environment
SN - 1879-1026
IS - 3
ER -