Title :
Evaluation of flow injection analysis based method for in situ chemical measurements
Author :
Birot, D. ; Daniel, A. ; Floch, H. ; Lehaitre, M. ; Leilde, B. ; Menut, E.
Author_Institution :
Lab. d´´Instrum. Oceanogr., IFREMER, Plouzane, France
Abstract :
This work constitutes a preliminary study for the development of a submersible chemical analyser based on FIA. A method based on a reverse FIA manifold and differential dual wavelength absorbtiometry is proposed in order to eliminate the refractive index interference and to achieve the sensitivity and accuracy needed for nitrate analysis in coastal seawater. Characterization of the effects of variations in simulated environmental conditions (salinity, temperature, pressure) on the measurements confirms the interest of this approach
Keywords :
chemical analysis; oceanographic equipment; oceanographic techniques; seawater; spectrochemical analysis; water pollution measurement; FIA; chemical analysis; coast; differential dual wavelength absorbtiometry; flow injection analysis; in situ chemical measurement; measurement technique; method; nitrate; nitrite; ocean water pollution; reverse FIA manifold; seawater; spectrochemical analysis; submersible chemical analyser; Chemical analysis; Fluid flow measurement; Interference; Marine vehicles; Pollution measurement; Refractive index; Sampling methods; Sea measurements; Underwater vehicles; Valves;
Conference_Titel :
OCEANS '94. 'Oceans Engineering for Today's Technology and Tomorrow's Preservation.' Proceedings
Conference_Location :
Brest
Print_ISBN :
0-7803-2056-5
DOI :
10.1109/OCEANS.1994.364067
