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| Fan, Lin; Sun, Geng; Qiu, Jiangbing; Ma, Qimin; Hess, Philipp; Li, Aifeng. |
| In the present study, okadaic acid (OA) and dinophysistoxin-1 (DTX1) were spiked into artificial seawater at low, medium and high estuarine salinities (9‰, 13.5‰ and 27‰). Passive samplers (HP20 resin) used for solid phase adsorption toxin tracking (SPATT) technology were exposed in these seawaters for12-h periods. Adsorption curves well fitted a pseudo-secondary kinetics model. The highest initial sorption rates of both toxins occurred in the seawater of medium salinity, followed by seawater of low and high estuarine salinity. Pore volumes of micropores (< 2 nm) and small mesopores (2 nm < diameter < 10 nm) of HP20 resin decreased after adsorption of toxins in seawater at high and low salinity but not in seawater at medium salinity, which... |
| Tipo: Text |
Palavras-chave: Diarrhetic shellfish toxins (DST); Solid phase adsorption toxin tracking (SPATT); HP20 resin; Salinity; Pore-size distribution; Pseudo-secondary kinetics equation. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00226/33766/32192.pdf |
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| Ji, Ying; Che, Yijia; Wright, Elliott J.; Mccarron, Pearse; Hess, Philipp; Li, Aifeng. |
| Marine shellfish exposed to the microalgae Karenia selliformis can accumulate gymnodimines (GYM). Shellfish samples collected from Beihai City in Guangxi Autonomous Region, and Ningde City in Fujian Province, in the South China Sea, as well as mussels Mytilus galloprovincialis fed on K. selliformis under laboratory conditions were analyzed. Gymnodimines and various fatty acid ester metabolites were detected in the clam Antigona lamellaris and pen shell Atrina pectinata, while no esters were found in the oyster Crassostrea sp. and the gastropod Batillaria zonalis despite positive detection of free GYM in both species. When present, the predominant acyl esters observed were 18:0-GYM-A and 20:1-GYM-A. Under laboratory conditions GYM-A was accumulated and... |
| Tipo: Text |
Palavras-chave: Gymnodimines (GYM); Fatty acid ester; Karenia selliformis; Toxin profiles; Antioxidant enzymes. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00609/72153/73203.pdf |
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