Principal Research Interests
There is a continuing need for the development of improved methods for the determination
of trace species in complex matrices in support of problem solving in areas related to nutrition, clinical studies, environmental contamination and the biogeochemical cycling of key elements, including aluminum, antimony, arsenic, cadmium, lead, mercury and selenium. My group works with microfluidic technologies--flow injection, continuous flow and liquid chromatography--together with element-specific detection (based on optical and mass atomic spectrometry) with pretreatment by solid-phase extraction and vapor generation. We also work on the determination of anions by molecular spectrometry, electrochemistry and quartz crystal microgravimetry. Field portable methods for arsenic in waters, soils and plants are also of interest. Sample materials also include, foods, beverages, dietary supplements, and clinical materials. Professors Uden and Voigtman collaborate on many projects. Some research projects involve graduate students, undergraduates, and K-12 students and their teachers. (http://umass.courses.edu/chemh01/)
Representative Publications
“Atomic Spectrometry Update - Advances in Atomic Emission, Absorption and Fluorescence Spectrometry and Related Techniques,” E.H. Evans, J.A. Day, C.D. Palmer, W.J. Price, C.M.M. Smith and J.F. Tyson, J. Anal. At. Spectrom. 22, 663-696 (2007).
“Phytoextraction of Arsenic From Soil by Leersia Oryzoides,” R.J. Ampiah-Bonney, J.F. Tyson and G.R. Lanza, Int. J. Phytoremed. 9, 31–40 (2007).
“Determination of Methylmercury and Inorganic Mercury in Water Samples by Slurry Sampling Cold Vapor Atomic Absorption Spectrometry in a Flow Injection System After Preconcentration on Silica C18 Modified,” S. Río Segade and J.F. Tyson, Talanta 71, 1696-1702 (2007).
“Determination of Selenium by Flow Injection Hydride Generation Inductively Coupled Plasma Optical Emission Spectrometry,” P.C. Hernandez, J.F. Tyson, P.C. Uden and D. Yates, J. Anal. At. Spectrom. 22, 298-304 (2007).
“Slurry Sampling for Determination of Lead in Marine Plankton by Electrothermal Atomic Absorption Spectrometry,” Z. Arslan and J.F. Tyson, Microchemical J. 227-234, 86 (2007).
“Real and Composite Emission Lines as Internal Standards in the Determination of Arsenic, Selenium and Antomony by Inductively Coupled Plasma Optical Emission Spectrometry,” F.M. Pan and J.F. Tyson, J. Anal. At. Spectrom. 22, 377-385 (2007).
“Instrumental Analysis in the Undergraduate Curriculum,” A. Fahey and J.F. Tyson, Anal. Chem. 78, 4249-4254 (2006).
“Determination of Antimony by Atomic Absorption Spectrometry with Flow Injection Hydride Generation by a Tetrahydroborate-Form Anion-Exchanger,” Y. Rodriguez and J.F. Tyson, J. Anal. At. Spectrom. 21, 757-762 (2006). |
