Electrochemical techniques and sensors for ocean research

Denuault, Guy

doi:10.5194/os-5-697-2009

Cited by 24 publications

(12 citation statements)

References 99 publications

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“…For long-term environmental monitoring, arrays of identical ISEs have been suggested to provide the necessary redundancy of sensors [46]. These results show that statistical modelling of an array of identical ISEs also provides the improvements in precision necessary for more widespread use of ISEs in environmental and health applications.…”

Section: Estimating Pb 2 + In Soil Using the Single-ise Modelmentioning

confidence: 70%

Bayesian Methods for Ion Selective Electrodes

et al. 2012

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With the increasing use of ion-selective electrodes in environmental and health applications, it is important to know the precision of estimated concentrations. A Bayesian model for non-linear calibration is introduced which provides estimates of measurement precision by incorporating uncertainty in calibration parameters and inherent random noise in emf response. The analysis of lead in 17 soil samples demonstrates that large gains in precision are possible when calibrations are extended to include multiple electrodes and standard addition data. The results highlight the need for improved calibration and routine use of standard addition as ion selective electrodes become increasingly popular for demanding, real world applications.

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Section: Estimating Pb 2 + In Soil Using the Single-ise Modelmentioning

confidence: 70%

Bayesian Methods for Ion Selective Electrodes

et al. 2012

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“…The shape and height of the peaks and waves also indicate the nature of the redox processes (e.g., whether a given redox process involves an adsorption/desorption or whether both reactants and products are soluble). A voltammogram is therefore a kind of finger print of the redox reactions [20]. …”

Section: Electrochemistry Of Hydroxycinnamic Acids and Derivativesmentioning

confidence: 99%

Hydroxycinnamic Acid Antioxidants: An Electrochemical Overview

Teixeira

Gaspar

Garrido

et al. 2013

BioMed Research International

250

197

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Hydroxycinnamic acids (such as ferulic, caffeic, sinapic, and p-coumaric acids) are a group of compounds highly abundant in food that may account for about one-third of the phenolic compounds in our diet. Hydroxycinnamic acids have gained an increasing interest in health because they are known to be potent antioxidants. These compounds have been described as chain-breaking antioxidants acting through radical scavenging activity, that is related to their hydrogen or electron donating capacity and to the ability to delocalize/stabilize the resulting phenoxyl radical within their structure. The free radical scavenger ability of antioxidants can be predicted from standard one-electron potentials. Thus, voltammetric methods have often been applied to characterize a diversity of natural and synthetic antioxidants essentially to get an insight into their mechanism and also as an important tool for the rational design of new and potent antioxidants. The structure-property-activity relationships (SPARs) correlations already established for this type of compounds suggest that redox potentials could be considered a good measure of antioxidant activity and an accurate guideline on the drug discovery and development process. Due to its magnitude in the antioxidant field, the electrochemistry of hydroxycinnamic acid-based antioxidants is reviewed highlighting the structure-property-activity relationships (SPARs) obtained so far.

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“…Electrochemical-based instruments are among the most widely used devices for in-situ chemical analysis (Denuault, 2009;Moore et al . 2009), and include conductometric, potentiometric and amperometric/voltammetric electrode systems (Taillefert et al ., 2000).…”

Section: Electrochemical Techniquesmentioning

confidence: 99%