A surface plasmon resonance system for the underwater detection of domoic acid

Type Article
Date 2016-07
Language English
Author(s) Colas FlorentORCID1, Crassous Marie-Pierre1, Laurent Sebastien1, Litaker Richard W.2, Rinnert EmmanuelORCID1, Le Gall Erwan1, Lunven Michel1, Delauney LaurentORCID1, Compere ChantalORCID1
Affiliation(s) 1 : Ifremer Ctr Brest, Technopole Brest Iroise, Plouzane, France.
2 : NOAA, Natl Ocean Serv, Ctr Coastal Fisheries & Habitat Res, Beaufort, NC USA.
Source Limnology And Oceanography-methods (1541-5856) (Wiley-blackwell), 2016-07 , Vol. 14 , N. 7 , P. 456-465
DOI 10.1002/lom3.10104
WOS© Times Cited 12
Abstract Over the past decade Surface Plasmon Resonance (SPR) techniques have been applied to the measurement of numerous analytes. In this article, an SPR biosensor system deployed from an oceanographic vessel was used to measure dissolved domoic acid (DA), a common and harmful phycotoxin produced by certain microalgae species belonging to the genus Pseudo-nitzschia. During the biosensor deployment, concentrations of Pseudo-nitzschia cells were very low over the study area and measured DA concentrations were below detection. However, the in situ operational detection limit of the system was established using calibrated seawater solutions spiked with DA. The system could detect the toxin at concentrations as low as 0.1 ng mL−1 and presented a linear dynamic range from 0.1 ng mL−1 to 2.0 ng mL−1. This sensor showed promise for in situ detection of DA.
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Colas Florent, Crassous Marie-Pierre, Laurent Sebastien, Litaker Richard W., Rinnert Emmanuel, Le Gall Erwan, Lunven Michel, Delauney Laurent, Compere Chantal (2016). A surface plasmon resonance system for the underwater detection of domoic acid. Limnology And Oceanography-methods, 14(7), 456-465. Publisher's official version : https://doi.org/10.1002/lom3.10104 , Open Access version : https://archimer.ifremer.fr/doc/00324/43481/