@article{PAR00007496,
  title = {{M}easurement of the isotopic composition of dissolved iron in the open ocean},
  author = {{L}acan, {F}. and {R}adic, {A}. and {J}eandel, {C}. and {P}oitrasson, {F}ranck and {S}arthou, {G}. and {P}radoux, {C}. and {F}reydier, {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his work demonstrates for the first time the feasibility of the measurement of the isotopic composition of dissolved iron in seawater for a typical open ocean {F}e concentration range (0.1-1n{M}). {I}t also presents the first data of this kind. {I}ron is preconcentrated using a {N}itriloacetic {A}cid {S}uperflow resin and purified using an {AG}1x4 anion exchange resin. {T}he isotopic ratios are measured with a {MC}-{ICPMS} {N}eptune, coupled with a desolvator ({A}ridus {II}), using a 57{F}e-58{F}e double spike mass bias correction. {M}easurement precision (0.13?, 2{SD}) allow resolving small iron isotopic composition variations within the water column, in the {A}tlantic sector of the {S}outhern {O}cean (from delta{F}e=-0.19 to +0.32?). {I}sotopically light iron found in the {U}pper {C}ircumpolar {D}eep {W}ater is hypothesized to result from organic matter remineralization. {S}hallow samples suggest that, if occurring, an iron isotopic fractionation during iron uptake by phytoplankton is characterized by a fractionation factor, such as: abs(delta{F}e(plankton-seawater))< 0.48?.},
  keywords = {},
  booktitle = {},
  journal = {{G}eophysical {R}esearch {L}etters},
  volume = {{L}24610},
  numero = {},
  pages = {18},
  year = {2008},
  DOI = {10.1029/2008{GL}035841},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00007496},
}