Consulta: subjectFacets:"Passive sampler"
Registros recuperados: 2
Data/hora: 06/06/2024 13:46:46

Passive Samplers, a Powerful Tool to Detect Viruses and Bacteria in Marine Coastal Areas
Provedor de dados: 5
Autores: Vincent Hubert, Francoise; Wacrenier, Candice; Morga, Benjamin; Lozach, Solen; Quenot, Emmanuelle; Mege, Mickael; Lecadet, Cyrielle; Gourmelon, Michele; Hervio-heath, Dominique; Le Guyader, Soizick.
The detection of viruses and bacteria which can pose a threat either to shellfish health or shellfish consumers remains difficult. The current detection methods rely on point sampling of water, a method that gives a snapshot of the microorganisms present at the time of sampling. In order to obtain better representativeness of the presence of these microorganisms over time, we have developed passive sampling using the adsorption capacities of polymer membranes. Our objectives here were to assess the feasibility of this methodology for field detection. Different types of membrane were deployed in coastal waters over 2 years and the microorganisms tested using qPCR were: human norovirus (NoV) genogroups (G)I and II, sapovirus, Vibrio spp. and the species...
Tipo: Text
Palavras-chave: Norovirus; Ostreid herpes virus 1 &amp;#956; Var; Vibrio spp; Microbial source tracking; Sea; Passive sampler; Oyster (Crassostrea gigas).
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00682/79375/81893.pdf

In situ measurement with diffusive gradients in thin films: effect of biofouling in freshwater
Provedor de dados: 5
Autores: Uher, Emmanuelle; Compere, Chantal; Combe, Matthieu; Mazeas, Florence; Gourlay-france, Catherine.
Concerning in situ passive sampler deployment, several technical priorities must be considered. In particular, deployment time must be sufficiently long not only to allow a significant quantity to be accumulated to facilitate analysis but also to ensure that the signal is above the quantification limit and out of the blank influence. Moreover, regarding the diffusive gradient in thin films (DGT) technique, deployment time must also be sufficiently long (at least 5 days) to avoid the interactions of the solutes with the material diffusion layer of the DGT and for the steady state to be reached in the gel. However, biofouling occurs in situ and modifies the surface of the samplers. In this article, we propose a kinetic model which highlights the biofouling...
Tipo: Text
Palavras-chave: DGT; Metals; Biofouling; Seine River; Field deployment; Passive sampler.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00382/49330/49759.pdf