Final published version
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 - Labile trace metal concentration measurements in marine environments
T2 - From coastal to open ocean areas
AU - Gao, Y.
AU - Zhou, C.
AU - Gaulier, C.
AU - Bratkic, A.
AU - Galceran, J.
AU - Puy, J.
AU - Zhang, H.
AU - Leermakers, M.
AU - Baeyens, W.
PY - 2019/7/1
Y1 - 2019/7/1
N2 - In seawater, trace metals occur in many forms: free ion, labile and non-labile complex, colloid, associated with particles, but only free ions and very labile metal complexes can cross the phytoplankton membrane and be assimilated. In this paper we review the most appropriate determination methods for those metal species, addressing particularly in situ speciation and preconcentration. Focus is on DGT-ICPMS, which is a technique that meets these criteria very well. In coastal environments, DGT probes are widely used for metal pollution monitoring, but in open ocean a carrier such as a glider, is required. In open ocean organic metal complexation has been studied using DGT-ICPMS and electrochemical methods. The use of DGTs with different diffusion domain thicknesses provides information to quantify labilities and dissociation rates of metal complex pools. Labilities of metal complexes in coastal waters appeared to be higher than in open sea.
AB - In seawater, trace metals occur in many forms: free ion, labile and non-labile complex, colloid, associated with particles, but only free ions and very labile metal complexes can cross the phytoplankton membrane and be assimilated. In this paper we review the most appropriate determination methods for those metal species, addressing particularly in situ speciation and preconcentration. Focus is on DGT-ICPMS, which is a technique that meets these criteria very well. In coastal environments, DGT probes are widely used for metal pollution monitoring, but in open ocean a carrier such as a glider, is required. In open ocean organic metal complexation has been studied using DGT-ICPMS and electrochemical methods. The use of DGTs with different diffusion domain thicknesses provides information to quantify labilities and dissociation rates of metal complex pools. Labilities of metal complexes in coastal waters appeared to be higher than in open sea.
KW - Coastal areas
KW - DGT
KW - Lability
KW - Metal complexes
KW - Open ocean
KW - Coastal zones
KW - Complexation
KW - Dissociation
KW - Inductively coupled plasma mass spectrometry
KW - Metals
KW - Oceanography
KW - Trace analysis
KW - Coastal area
KW - Coastal environments
KW - Determination methods
KW - Dissociation rates
KW - ELectrochemical methods
KW - Trace metal concentration
KW - Trace elements
U2 - 10.1016/j.trac.2019.04.027
DO - 10.1016/j.trac.2019.04.027
M3 - Journal article
VL - 116
SP - 92
EP - 101
JO - TrAC Trends in Analytical Chemistry
JF - TrAC Trends in Analytical Chemistry
SN - 0165-9936
ER -