Analytical Spectroscopy/Mass Spectrometry/Laboratory Automation
The latest technological advances in electronics, physics, optics,
acoustics, mechanical engineering and computer science are being
utilized to develop new and improved analytical spectrochemical
techniques. A multifaceted but strongly interlocking program
designed to elucidate fundamental phenomena occurring in systems
employed for spectrochemical analysis is currently underway.
Fundamental theoretical knowledge obtained in these studies is being
applied toward the development of more accurate and sensitive
analytical techniques.
Over the past twenty years, focal plane array
detectors have brought an amazing revolution to analytical
spectroscopy, providing increased sensitivity, dynamic range, and
improved background correction. New generations of these detectors
are being developed and applied to a variety of spectroscopic
techniques, including fluorescence, phosphorescence, Raman, and
atomic emission analysis. Raman spectroscopy utilizing advanced
instrumental concepts, including far-UV laser excitation, is being
investigated. Applications including pharmaceutical analysis, gem
and mineral identification, and advanced techniques for process
control are under study. Emphasis is currently being placed on
approaches for rapid, sensitive simultaneous analysis of multiple
trace level species.
A variety of projects are under way in the area of
mass spectrometry, including the development of improved ion sources
and sample introduction techniques. Advanced vacuum ultraviolet
lasers are being utilized to provide selective photoionization of
specified molecules and applied to chemotherapy research.
A program to develop new array detector technologies for mass
spectrometry and ion mobility spectrometry is rapidly advancing.
Current results promise to revolutionize detection schemes for both
techniques.
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"Testing of a Micro Faraday Cup Array for Ion Detection in SIMS", Jan Lorincik, M. Bonner Denton, Roger P. Sperline, Erick T. Young, Peter Williams (2011), Analytical Letters, 44: 6, 1050-1057.
"Evaluation of a fourth-generation focal plane camera for use in plasma-source mass spectrometry", Jeremy A. Felton, Gregory D. Schilling, Steven J. Ray, Roger P. Sperline, M. Bonner Denton, Charles J. Barinaga, David W. Koppenaal, and Gary M. Hieftje, Journal of Analytical Atomic Spectrometry, 26 no. 2 (2011): 300-304.
"Characterization of a third-generation Faraday-strip array detector coupled to a Mattauch-Herzog geometry mass spectrograph with a dc-glow discharge ionization source", Arnon A. Rubinshtein, Gregory D. Schilling, Steven J. Ray, Roger P. Sperline, M. Bonner Denton, Charles J. Barinaga, David W. Koppenaal, and Gary M. Hieftje, Journal of Analytical Atomic Spectrometry, 2010, 25, 735-738; Published online 2/12/2010, DOI: 10.1039/b913118c.
"CES: Engineering Landspeed Vehicles", Noeth, Louise Anne, Cutting Edge Science, Lincoln Interactive, The National Network of Digital Schools, published online: Summer, 2010.
"Evaluation of a 512-Channel Faraday-Strip Array Detector Coupled to an Inductively Coupled Plasma Mattauch-Herzog Mass Spectrograph", Gregory D. Schilling, Steven J. Ray, Arnon A. Rubinshtein, Jeremy A. Felton, Roger P. Sperline, M. Bonner Denton, Charles J. Barinaga, David W. Koppenaal, and Gary M. Hieftje, Analytical Chemistry, Published online: 05/22/2009.
"Performance evaluation of a miniature ion mobility spectrometer drift cell for application in hand-held explosives detection ion mobility spectrometers", J. S. Babis, R. P. Sperline, A. K. Knight, D. A. Jones, C. A. Gresham and M. B. Denton, Analytical and Bioanalytical Chemistry, Published online: 05/08/2009; Springer Berlin/Heidelberg, ISSN 1618-2642 (Print) 1618-2650 (Online), DOI: 10.1007/s00216-009-2818-5
"Strengthening Forensic Science in the United States: A Path Forward", H. T. Edwards, C. Gatsonis, M. A. Berger, J. S. Cecil, M. B. Denton, M. Fierro, K. Kafadar, P. M. Marone, G. S. Mearns, R. S. Murch, C. Robertson, M. Schechter, R. Shaler, J. A. Siegel, S. N. Srihari, S. M. Wiederhorn, and R. Zumwalt, Report of the National Research Council of the National Academies, Committee on Identifying the Needs of the Forensic Science Community, National Academies Press, Washington, D.C. (2009).
"Use of an ambient ionization flowing atmospheric-pressure afterglow source for elemental analysis through hydride generation", Gregory D. Schilling, Jacob T. Shelley, Jose A.C. Broekaert, Roger P. Sperline, M. Bonner Denton, Charles J. Barinaga, David W. Koppenaal and Gary M. Hieftje, Journal of Analytical Atomic Spectrometry, Electronic: 12/16/2008; Paper: 2009, 24, 34-40, DOI: 10.1039/b811250a.
"Raman Spectroscopic and Visible Absorption Investigation of LiCrSi2O6 Pyroxene Under Pressure", C.J.S. Pommier, G.J. Redhammer, M.B. Denton, R.T. Downs, Applied Spectroscopy, 62-7, 766-772 (2008).
"Continuous Simultaneous Detection in Mass Spectrometry", Gregory D. Schilling, Francisco J. Andrade, James H. Barnes IV, Roger P. Sperline, M. Bonner Denton, Charles J. Barinaga, David W. Koppenaal, and Gary M. Hieftje, Analytical Chemistry, 79 (20), 7662-7668 (2007).
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