@article{fdi:010074939,
  title = {{F}irst deployment and validation of in situ silicate electrochemical sensor in seawater},
  author = {{B}arus, {C}. and {L}egrand, {D}. {C}. and {S}triebig, {N}. and {J}ugeau, {B}. and {D}avid, {A}. and {V}alladares, {M}. and {P}arra, {P}. {M}. and {R}amos, {M}. {E}. and {D}ewitte, {B}oris and {G}arcon, {V}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}n electrochemical sensor is proposed to measure silicate concentration, in situ, in the ocean without any addition of liquid reagent. {F}rom the analytical principle to the laboratory prototype toward the first in situ, immersible sensor, the evolution of the mechanical design is presented and discussed. {T}he developed in situ electronics were compared to the commercial potentiostat and gave promising results to detect low silicate signals with a limit of quantification of 1 mu mol {L}-1. {T}he flow rate of the pump appeared to be a crucial parameter in order to transfer the silicomolybdic complex formed from the "complexation cell" to the "detection cell" without dilution as well as to fill and rinse the whole circuit. {T}he study of temperature effect revealed no influence on the electrochemical signal between similar to 7 degrees and similar to 21 degrees {C}. {F}inally the sensor was successfully deployed for the very first time on a mooring off {C}oquimbo, {C}hile and also integrated onto a {PROVOR} profiling float in the {M}editerranean {S}ea off {V}illefranche-sur-{M}er, {F}rance. {T}he data collected and/or sent through satellite were in good agreement with the 2 reference samples and previously published values illustrating the great potential of this electrochemical sensor. {A} 7 days silicate time series from the mooring deployment off {C}hile is also presented.},
  keywords = {autonomous sensor ; reagentless electrochemical detection ; silicate ; seawater ; mooring and float deployments ; {CHILI} ; {FRANCE} ; {MEDITERRANEE} ; {PACIFIQUE}},
  booktitle = {},
  journal = {{F}rontiers in {M}arine {S}cience},
  volume = {5},
  numero = {},
  pages = {art. 60 [11 p.]},
  year = {2018},
  DOI = {10.3389/fmars.2018.00060},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074939},
}