The Experts below are selected from a list of 198 Experts worldwide ranked by ideXlab platform
Paul A. Kilmartin - One of the best experts on this subject based on the ideXlab platform.
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determination of the wine preservative Sulphur Dioxide with cyclic voltammetry using inkjet printed electrodes
Food Chemistry, 2014Co-Authors: Marion Schneider, Alexander Turke, Wolf-joachim Fischer, Paul A. KilmartinAbstract:Abstract During winemaking Sulphur Dioxide is added to prevent undesirable reactions. However, concerns over the harmful effects of sulphites have led to legal limits being placed upon such additives. There is thus a need for simple and selective determinations of Sulphur Dioxide in wine, especially during winemaking. The simultaneous detection of polyphenols and Sulphur Dioxide, using cyclic voltammetry at inert electrodes is challenging due to close oxidation potentials. In the present study, inkjet printed electrodes were developed with a suitable voltammetric signal on which the polyphenol oxidation is suppressed and the oxidation peak height for Sulphur Dioxide corresponds linearly to the concentration. Different types of working electrodes were printed. Electrodes consisting of gold nanoparticles mixed with silver showed the highest sensitivity towards Sulphur Dioxide. Low cost production of the sensor elements and ultra fast determination of Sulphur Dioxide by cyclic voltammetry makes this technique very promising for the wine industry.
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Determination of the wine preservative Sulphur Dioxide with cyclic voltammetry using inkjet printed electrodes
Food Chemistry, 2014Co-Authors: Marion Schneider, Alexander Turke, Wolf-joachim Fischer, Paul A. KilmartinAbstract:During winemaking Sulphur Dioxide is added to prevent undesirable reactions. However, concerns over the harmful effects of sulphites have led to legal limits being placed upon such additives. There is thus a need for simple and selective determinations of Sulphur Dioxide in wine, especially during winemaking. The simultaneous detection of polyphenols and Sulphur Dioxide, using cyclic voltammetry at inert electrodes is challenging due to close oxidation potentials. In the present study, inkjet printed electrodes were developed with a suitable voltammetric signal on which the polyphenol oxidation is suppressed and the oxidation peak height for Sulphur Dioxide corresponds linearly to the concentration. Different types of working electrodes were printed. Electrodes consisting of gold nanoparticles mixed with silver showed the highest sensitivity towards Sulphur Dioxide. Low cost production of the sensor elements and ultra fast determination of Sulphur Dioxide by cyclic voltammetry makes this technique very promising for the wine industry. © 2014 Elsevier Ltd. All rights reserved.
Marion Schneider - One of the best experts on this subject based on the ideXlab platform.
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determination of the wine preservative Sulphur Dioxide with cyclic voltammetry using inkjet printed electrodes
Food Chemistry, 2014Co-Authors: Marion Schneider, Alexander Turke, Wolf-joachim Fischer, Paul A. KilmartinAbstract:Abstract During winemaking Sulphur Dioxide is added to prevent undesirable reactions. However, concerns over the harmful effects of sulphites have led to legal limits being placed upon such additives. There is thus a need for simple and selective determinations of Sulphur Dioxide in wine, especially during winemaking. The simultaneous detection of polyphenols and Sulphur Dioxide, using cyclic voltammetry at inert electrodes is challenging due to close oxidation potentials. In the present study, inkjet printed electrodes were developed with a suitable voltammetric signal on which the polyphenol oxidation is suppressed and the oxidation peak height for Sulphur Dioxide corresponds linearly to the concentration. Different types of working electrodes were printed. Electrodes consisting of gold nanoparticles mixed with silver showed the highest sensitivity towards Sulphur Dioxide. Low cost production of the sensor elements and ultra fast determination of Sulphur Dioxide by cyclic voltammetry makes this technique very promising for the wine industry.
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Determination of the wine preservative Sulphur Dioxide with cyclic voltammetry using inkjet printed electrodes
Food Chemistry, 2014Co-Authors: Marion Schneider, Alexander Turke, Wolf-joachim Fischer, Paul A. KilmartinAbstract:During winemaking Sulphur Dioxide is added to prevent undesirable reactions. However, concerns over the harmful effects of sulphites have led to legal limits being placed upon such additives. There is thus a need for simple and selective determinations of Sulphur Dioxide in wine, especially during winemaking. The simultaneous detection of polyphenols and Sulphur Dioxide, using cyclic voltammetry at inert electrodes is challenging due to close oxidation potentials. In the present study, inkjet printed electrodes were developed with a suitable voltammetric signal on which the polyphenol oxidation is suppressed and the oxidation peak height for Sulphur Dioxide corresponds linearly to the concentration. Different types of working electrodes were printed. Electrodes consisting of gold nanoparticles mixed with silver showed the highest sensitivity towards Sulphur Dioxide. Low cost production of the sensor elements and ultra fast determination of Sulphur Dioxide by cyclic voltammetry makes this technique very promising for the wine industry. © 2014 Elsevier Ltd. All rights reserved.
Alexander Turke - One of the best experts on this subject based on the ideXlab platform.
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determination of the wine preservative Sulphur Dioxide with cyclic voltammetry using inkjet printed electrodes
Food Chemistry, 2014Co-Authors: Marion Schneider, Alexander Turke, Wolf-joachim Fischer, Paul A. KilmartinAbstract:Abstract During winemaking Sulphur Dioxide is added to prevent undesirable reactions. However, concerns over the harmful effects of sulphites have led to legal limits being placed upon such additives. There is thus a need for simple and selective determinations of Sulphur Dioxide in wine, especially during winemaking. The simultaneous detection of polyphenols and Sulphur Dioxide, using cyclic voltammetry at inert electrodes is challenging due to close oxidation potentials. In the present study, inkjet printed electrodes were developed with a suitable voltammetric signal on which the polyphenol oxidation is suppressed and the oxidation peak height for Sulphur Dioxide corresponds linearly to the concentration. Different types of working electrodes were printed. Electrodes consisting of gold nanoparticles mixed with silver showed the highest sensitivity towards Sulphur Dioxide. Low cost production of the sensor elements and ultra fast determination of Sulphur Dioxide by cyclic voltammetry makes this technique very promising for the wine industry.
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Determination of the wine preservative Sulphur Dioxide with cyclic voltammetry using inkjet printed electrodes
Food Chemistry, 2014Co-Authors: Marion Schneider, Alexander Turke, Wolf-joachim Fischer, Paul A. KilmartinAbstract:During winemaking Sulphur Dioxide is added to prevent undesirable reactions. However, concerns over the harmful effects of sulphites have led to legal limits being placed upon such additives. There is thus a need for simple and selective determinations of Sulphur Dioxide in wine, especially during winemaking. The simultaneous detection of polyphenols and Sulphur Dioxide, using cyclic voltammetry at inert electrodes is challenging due to close oxidation potentials. In the present study, inkjet printed electrodes were developed with a suitable voltammetric signal on which the polyphenol oxidation is suppressed and the oxidation peak height for Sulphur Dioxide corresponds linearly to the concentration. Different types of working electrodes were printed. Electrodes consisting of gold nanoparticles mixed with silver showed the highest sensitivity towards Sulphur Dioxide. Low cost production of the sensor elements and ultra fast determination of Sulphur Dioxide by cyclic voltammetry makes this technique very promising for the wine industry. © 2014 Elsevier Ltd. All rights reserved.
Wolf-joachim Fischer - One of the best experts on this subject based on the ideXlab platform.
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determination of the wine preservative Sulphur Dioxide with cyclic voltammetry using inkjet printed electrodes
Food Chemistry, 2014Co-Authors: Marion Schneider, Alexander Turke, Wolf-joachim Fischer, Paul A. KilmartinAbstract:Abstract During winemaking Sulphur Dioxide is added to prevent undesirable reactions. However, concerns over the harmful effects of sulphites have led to legal limits being placed upon such additives. There is thus a need for simple and selective determinations of Sulphur Dioxide in wine, especially during winemaking. The simultaneous detection of polyphenols and Sulphur Dioxide, using cyclic voltammetry at inert electrodes is challenging due to close oxidation potentials. In the present study, inkjet printed electrodes were developed with a suitable voltammetric signal on which the polyphenol oxidation is suppressed and the oxidation peak height for Sulphur Dioxide corresponds linearly to the concentration. Different types of working electrodes were printed. Electrodes consisting of gold nanoparticles mixed with silver showed the highest sensitivity towards Sulphur Dioxide. Low cost production of the sensor elements and ultra fast determination of Sulphur Dioxide by cyclic voltammetry makes this technique very promising for the wine industry.
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Determination of the wine preservative Sulphur Dioxide with cyclic voltammetry using inkjet printed electrodes
Food Chemistry, 2014Co-Authors: Marion Schneider, Alexander Turke, Wolf-joachim Fischer, Paul A. KilmartinAbstract:During winemaking Sulphur Dioxide is added to prevent undesirable reactions. However, concerns over the harmful effects of sulphites have led to legal limits being placed upon such additives. There is thus a need for simple and selective determinations of Sulphur Dioxide in wine, especially during winemaking. The simultaneous detection of polyphenols and Sulphur Dioxide, using cyclic voltammetry at inert electrodes is challenging due to close oxidation potentials. In the present study, inkjet printed electrodes were developed with a suitable voltammetric signal on which the polyphenol oxidation is suppressed and the oxidation peak height for Sulphur Dioxide corresponds linearly to the concentration. Different types of working electrodes were printed. Electrodes consisting of gold nanoparticles mixed with silver showed the highest sensitivity towards Sulphur Dioxide. Low cost production of the sensor elements and ultra fast determination of Sulphur Dioxide by cyclic voltammetry makes this technique very promising for the wine industry. © 2014 Elsevier Ltd. All rights reserved.
Denis Belyaev - One of the best experts on this subject based on the ideXlab platform.
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Variations of Sulphur Dioxide at the cloud top of Venus’s dynamic atmosphere
Nature Geoscience, 2013Co-Authors: Emmanuel Marcq, Jean-loup Bertaux, Franck Montmessin, Denis BelyaevAbstract:Sulphur Dioxide is a million times more abundant in the atmosphere of Venus than that of Earth, possibly as a result of volcanism on Venus within the past billion years^ 1 , 2 . A tenfold decrease in Sulphur Dioxide column density above Venus’s clouds measured by the Pioneer Venus spacecraft during the 1970s and 1980s has been interpreted as decline following an episode of volcanogenic upwelling from the lower atmosphere^ 3 , 4 . Here we report that the Sulphur Dioxide column density above Venus’s clouds decreased by an order of magnitude between 2007 and 2012 using ultraviolet spectrometer data from the SPICAV instrument onboard the Venus Express spacecraft. This decline is similar to observations during the 1980s. We also report strong latitudinal and temporal variability in Sulphur Dioxide column density that is consistent with supply fluctuations from the lower atmosphere. We suggest that episodic Sulphur Dioxide injections to the cloud tops may be caused either by periods of increased buoyancy of volcanic plumes, or, in the absence of active volcanism, by long-period oscillations of the general atmospheric circulation. The 30-year observational record from Pioneer Venus and Venus Express confirms that episodic injections of Sulphur Dioxide above the clouds recur on decadal timescales, suggesting a more variable atmosphere than expected. A pulse of Sulphur Dioxide in Venus’s upper atmosphere was observed by the Pioneer Venus spacecraft in the 1970s and 1980s and attributed to volcanism. Recent Sulphur Dioxide measurements from Venus Express indicate decadal-scale fluctuations in Sulphur Dioxide above Venus’s cloud tops in an atmosphere that is more dynamic than expected.
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variations of Sulphur Dioxide at the cloud top of venus s dynamic atmosphere
Nature Geoscience, 2013Co-Authors: Emmanuel Marcq, Jean-loup Bertaux, Franck Montmessin, Denis BelyaevAbstract:A pulse of Sulphur Dioxide in Venus’s upper atmosphere was observed by the Pioneer Venus spacecraft in the 1970s and 1980s and attributed to volcanism. Recent Sulphur Dioxide measurements from Venus Express indicate decadal-scale fluctuations in Sulphur Dioxide above Venus’s cloud tops in an atmosphere that is more dynamic than expected.
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Variations of Sulphur Dioxide at the cloud top of Venus’s dynamic atmosphere
Nature Geoscience, 2012Co-Authors: Emmanuel Marcq, Jean-loup Bertaux, Franck Montmessin, Denis BelyaevAbstract:A pulse of Sulphur Dioxide in Venus’s upper atmosphere was observed by the Pioneer Venus spacecraft in the 1970s and 1980s and attributed to volcanism. Recent Sulphur Dioxide measurements from Venus Express indicate decadal-scale fluctuations in Sulphur Dioxide above Venus’s cloud tops in an atmosphere that is more dynamic than expected.
