CHEMINI: A new in situ CHEmical MINIaturized analyzer |
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| Authors: | R Vuillemin D Le Roux P Dorval K Bucas JP Sudreau M Hamon C Le Gall PM Sarradin |
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| Institution: | 1. IFREMER, TSI, centre de Brest, 29280 Plouzané, France;2. IFREMER, DEEP, centre de Brest, 29280 Plouzané, France |
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| Abstract: | “CHEMINI” is a new instrument developed for the measurement of seawater chemical parameters. It is a mono-parameter in situ chemical analyzer based on flow injection analysis and colorimetric detection. The deep-sea version of CHEMINI combines two modules to perform the analysis of dissolved iron Fe (II) or Fe (II+III)] and total sulphide (H2S+HS?+S2?) up to 6000 m depth. Detection limits are, respectively, 0.3 and 0.1 μM for iron and sulphide. The system proved highly reliable during the MoMARETO cruise on the Mid-Atlantic Ridge. The two CHEMINIs were used to describe the chemical environment in 12 mussel beds on the Tour Eiffel hydrothermal edifice. |
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