University of North Florida
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Contact Info

Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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James Davis

Abbrev:
Davis, J.
Other Names:
Address:
Department Chemistry, University of Surrey, Guildford, Surrey GU2 7XH, England
Phone:
+44-1483-689596
Fax:
+44-1865-275410

Citations 3

"Analytical Strategies For The Detection Of Sulfide: A Review"
Talanta 2000 Volume 52, Issue 5 Pages 771-784
Nathan S. Lawrence, James Davis and Richard G. Compton

Abstract: The detection of sulfide, particularly hydrogen sulfide, has long held the attention of the analytical community and, as such, a large number of protocols have arisen. Built around a core of reactions, some of which are highly specific to sulfide, there is considerable scope for exploitation across a number of instrumental platforms. Such flexibility may provide options for alleviating Potentially intractable matrix effects through switching to an alternative detection methodology. This review details the need for sulfide measurements and describes the basis of many of the current approaches to sulfide detection. The collation of information from a broad range of sources, covering the major approaches, has been achieved and the salient points of each technique presented and critically appraised. The various peculiarities of the systems are compared and contrasted and a summary of the analytical characteristics (matrix, methodology and detection range) from each has been constructed.
Review

"Current Strategies In Nitrite Detection And Their Application To Field Analysis"
J. Environ. Monit. 2002 Volume 4, Issue 3 Pages 465-471
Jodi Dutt and James Davis

Abstract: The various analytical protocols that have been developed to aid the measurement of nitrite within environmental samples have been critically appraised and their applicability to field measurement assessed. The present communication presents a perspective on current techniques and technologies encompassing spectroscopic, electrochemical and chromatographic methodologies and highlights, those that are liable to emerge in the near future. Commercial devices have been included and where appropriate the advantages and limitations posed by their operation within field contexts have been described.

"Laser Etched Carbon Fibre Composites: Disposable Detectors For Flow Analysis Applications"
Electrochem. Commun. 2006 Volume 8, Issue 8 Pages 1315-1320
Guy Kilbey, Nikolaos G. Karousos, David Eglin and James Davis

Abstract: Laser etching techniques have been used to selectively core polyester-carbon fiber mesh composites to yield a fibrous channel structure. The fibers retain their conductivity and when sandwiched within flow assemblies have been shown to provide a versatile electrode substrate that can be used as an inexpensive electrochemical detector. The influence of the laser treatment has been characterized in terms of both the physical erosion of the underlying carbon fiber network and in the resulting electrochemical behavior towards model analytes. The viability of using the fabrication system as a detector for use in liquid chromatographic or flow injection analysis has been evaluated using ascorbate, sulphite, nitrite and nitrate under a variety of detection regimes. Modification of the fiber network with electrodeposited copper has been shown to facilitate the detection of nitrate and sulphite and a strategy for transferring the technology to other formats is critically appraised. © 2006.