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| Betelu, Stephanie; Tijunelyte, Inga; Boubekeur-lecaque, Leila; Ignatiadis, Ioannis; Ibrahim, Joyce; Gaboreau, Stephane; Berho, Catherine; Toury, Timothee; Guenin, Erwann; Lidgi-guigui, Nathalie; Felidj, Nordin; Rinnert, Emmanuel; Lamy De La Chapelle, Marc. |
| Gold nanostructures (GNS) were chemically functionalized using four different diazonium salts: benzene-diazonium-tetrafluoroborate (DS), 4-decylbenzene-diazonium-tetrafluoroborate (DS-C10H21), 4-carboxybenzene-diazonium-tetrafluoroborate (DS-COOH), and 4-(aminoethyl)-benzene-diazonium-tetrafluoroborate (DS-(CH2)(2)NH2). Effective chemical grafting on GNS was shown by surface-enhanced Raman spectroscopy (SERS); aromatic ring deformations in the range of 1570-1591 cm(-1) are of particular interest. The very strong band observed around 1075 cm(-1), related to CH in-plane bending for mono- and para-substituted benzenes (coupled with ring-N stretching mode), provided further irrefutable evidence of the grafting. SERS enhancement of these two bands ascertains... |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00350/46139/46200.pdf |
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| Berho, Catherine; Mazzella, Nicolas; Munaron, Dominique; Lepot, Benedicte; Budzinski, Helene; Gonzalez, Catherine; Gravell, Antony; Gunold, Roman; Peinerud, Elsa; Smedes, Foppe; Vrana, Branislav; Miege, Cécile. |
| The Water Framework Directive (WFD) is probably the most significant legislation in the water field that has been introduced for many years. Several publications pointed out that passive samplers (PSs) can be valuable tools as complementary method in monitoring water quality in the context of the WFD However, there is still a lack of quality assurance and control (QA/QC) procedures that demonstrate the reliability and the comparability of results obtained by passive sampling. Up to date, very few in situ intercomparison exercises on PSs have been performed until now. To our knowledge only three pan-European or international intercomparison studies have been organized in situ since 2007 (ICES Passive sampling survey and intercalibration, AQUAREF, IPSIC and... |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00167/27873/26118.pdf |
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| Jacquet, Romain; Miege, Cecile; Smedes, Foppe; Tixier, Celine; Tronczynski, Jacek; Togola, Anne; Berho, Catherine; Valor, Ignacio; Llorca, Julio; Barillon, Bruno; Marchand, Philippe; Coquery, Marina. |
| This study aimed at evaluating and comparing five integrative samplers for the monitoring of indicator and dioxin-like polychlorinated biphenyls (PCBs) in water: semi-permeable membrane device (SPMD), silicone rubber, low-density polyethylene (LDPE) strip, Chemcatcher and a continuous-flow integrative sampler (CFIS). These samplers were spiked with performance reference compounds (PRCs) and then simultaneously exposed under constant agitation and temperature in a 200 L stainless steel tank for periods ranging from one day to three months. A constant PCB concentration of about 1 ng·L−1 was achieved by immersing a large amount of silicone rubber sheets (“dosing sheets”) spiked with the target PCBs. The uptake of PCBs in the five samplers showed overall good... |
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Palavras-chave: Integrative samplers; Polychlorinated biphenyls; Water monitoring; Time weighted average concentration; Modeling. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00162/27317/25962.pdf |
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| Rinnert, Emmanuel; Berho, Catherine; Le Floch, Stephane; Vergnole, Sébastien; Lamy De La Chapelle, Marc; Toury, Timothée. |
| Le projet REMANTAS propose de développer un capteur pour rendre possible l’analyse de contaminants sur sites terrestres, côtiers ou maritimes. Les polluants ciblés, HAP, COV, BTEX, sont inscrits à la liste de la DCE ou font partie des substances candidates et/ou font partie des 100 substances les plus transportées par voie maritime. Ces trois familles de contaminants permettent de montrer l’adaptabilité du capteur en vue d’élargir le champ d’application de la technique d’analyse sur site. Les limites de détection visées sont du même ordre de grandeur que celles des techniques de référence. |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00101/21218/18833.pdf |
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| Tijunelyte, Inga; Betelu, Stephanie; Moreau, Jonathan; Ignatiadis, Ioannis; Berho, Catherine; Lidgi-guigui, Nathalie; Guenin, Erwann; David, Catalina; Vergnole, Sebastien; Rinnert, Emmanuel; Lamy De La Chapelle, Marc. |
| Here, we present a surface-enhanced Raman spectroscopy (SERS) nanosensor for environmental pollutants detection. This study was conducted on three polycyclic aromatic hydrocarbons (PAHs): benzo[a]pyrene (BaP), fluoranthene (FL), and naphthalene (NAP). SERS substrates were chemically functionalized using 4-dodecyl benzenediazonium-tetrafluoroborate and SERS analyses were conducted to detect the pollutants alone and in mixtures. Compounds were first measured in water-methanol (9:1 volume ratio) samples. Investigation on solutions containing concentrations ranging from 10−6 g L−1 to 10−3 g L−1 provided data to plot calibration curves and to determine the performance of the sensor. The calculated limit of detection (LOD) was 0.026 mg L−1 (10−7 mol L−1) for... |
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Palavras-chave: Polynuclear aromatic hydrocarbon (PAH); Surface-enhanced Raman spectroscopy (SERS); Nanosensor; Diazonium salt; Surface functionalization; Detection. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00386/49772/50316.pdf |
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