FN Archimer Export Format
PT J
TI Silicate electrochemical measurements in seawater: Chemical and analytical aspects towards a reagentless sensor
BT 
AF LACOMBE, Marielle
   GARCON, Veronique
   THOURON, Daniele
   LE BRIS, Nadine
   COMTAT, Maurice
AS 1:1;2:1;3:1;4:2;5:3;
FF 1:;2:;3:;4:PDG-DOP-DCB-EEP-LEP;5:;
C1 CNRS, Lab Etud Geophys & Ocenog Spatiales, UMR 5566, F-31401 Toulouse 9, France.
   IFREMER, Dept Etud Ecosyst Profonds, F-29280 Plouzane, France.
   Univ Toulouse 3, Lab Genie Chim, UMR 5503, F-31062 Toulouse, France.
C2 CNRS, FRANCE
   IFREMER, FRANCE
   UNIV TOULOUSE, FRANCE
SI BREST
SE PDG-DOP-DCB-EEP-LEP
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 3.206
TC 17
UR https://archimer.ifremer.fr/doc/2008/publication-6114.pdf
LA English
DT Article
DE ;Cyclic voltammetry;Amperometry;Reagentless;Silicate;Molybdenum
AB From the study of molybdenum oxidation in aqueous solutions we developed a semi-autonomous method to detect silicate in aqueous samples. Molybdenum oxidation was used to form molybdate in acidic media. The silicomolybdic complex formed with silicate is detectable by amperometry or cyclic voltammetry. The new electrochemical method is in good agreement with the method conventionally used for environmental water silicate analysis. In the second stage, a completely reagentless method was developed using molybdate and proton produced during molybdenum oxidation. Reproducibility tests show a precision of 2.6% for a concentration of 100 mu mol L-1. This new method will be Very Suitable for the development of new autonomous silicate sensors easy to handle and without reagents. In this paper we present the analytical and chemical aspects necessary for a complete documentation of the method before the development of a new reagentless sensor. (C) 2008 Published by Elsevier B.V.
PY 2008
PD DEC
SO Talanta
SN 0039-9140
PU Elsevier
VL 77
IS 2
UT 000261416500047
BP 744
EP 750
DI 10.1016/j.talanta.2008.07.023
ID 6114
ER

EF