David S. Trimble

Scientific Instrument Coordinator

Education

  • B.S., Chemistry(Computer Science concentration), Denison University
  • Ph.D., Analytical Chemistry, University of Tennessee, Knoxville (advisor: Gleb Mamantov)

Contact Information

  • Office: Dupont - Science Center 163
  • Telephone: (610) 328-8241
  • Fax: (610) 328-7355
  • E-mail: dtrimbl1@swarthmore.edu
  • Mailing address: Department of Chemistry, Swarthmore College, 500 College Ave., Swarthmore, PA 19081-1397

Experience

  • Team Leader and Senior Analytical Chemist, International Paper, Franklin, Virginia
    • Responsible for laboratory testing programs to address process and product quality, quality control and process stability, and state/federally regulated air/water/wastewater issues.
    • Championed acquisition of state of the art instrument systems, including FTIR, gas chromatography, ion and liquid chromatography, and bench top test/measurement systems.
    • Utilized SPC (statistical process control) and GMP (good manufacturing practice) principles to ensure integrity of procedures and quality of test results.
  • Adjunct Professor of Chemistry, Richmond, Virginia area colleges
    • Added value to curriculum by tying lessons to current medical, consumer, and environmental issues.
  • Post Doctoral Research Associate, Measurement and Control Engineering Center, College of Engineering, University of Tennessee, Knoxville
    • Developed novel fiber optic FT-Raman spectroscopic instrumentation for on-line composition analysis for process control of chemical distillation columns.
  • Consultant, Oak Ridge Gaseous Diffusion Plant, Oak Ridge, Tennessee
    • Wrote data acquisition and custom control system for Raman spectrometer system before friendly PC-based systems were commercially available.

Affiliations

* American Chemical Society, Division of Analytical Chemistry

* The Society for Applied Spectroscopy

* The Coblentz Society for the Advancement of Vibrational Spectroscopy

* FACSS (Federation of Analytical Chemistry and Spectroscopy Societies)

o        Governing Board (Delegate, Coblentz Society)

o        Chair, Workshops Program 2002-2003

* Eastern Analytical Symposium

o        Governing Board (Alternate Delegate, Coblentz Society)

Publications and Presentations

D.S. Trimble, D. R. Raymond, S. S. Raulston, K. J. Brannstrom, "Environmental Characteristics of an Ozone-Based Bleaching Process", presented at the NCASI 1993 Southern Regional Meeting, June 1993

R. G. Thurmon, D.S. Trimble, W.C. Harris, S. E. Reeves, S. E. McMahon, "Environmental Benefits of Ozone-Based Bleaching", presented at the First International Environmental Symposium "Pulp and Paper Technologies for a Cleaner World" held at Paris, April 1993.

D. S. Trimble, W.C. Harris, S. E. Reeves, R. G. Thurmon, S. E. McMahon, R. L. Additon, "Environmental Benefits of Ozone-Based Bleaching", presented at the TAPPI Environmental Conference, March 1993. Best Paper Award - Water Category

M. J. Roberts, A.A. Garrison, S. J. Kercel, D. S. Trimble, C. F. Moore, and E. C. Muly, "Development and Application of a Raman Spectroscopy Based Instrument for Multi-Point Composition Analysis and Control of a Distillation Column", ISA Proceedings, Vol. 45, Part 1, pp. 463-468, October 1990.

S. J. Kercel, M.J. Roberts, A. A. Garrison, and D. S. Trimble, "Development of a Fiber-Optic Based Instrument for On-Line Raman Analysis of Process Chemical Composition", Sensors Expo West Proceedings, Helmers Publishing Company, Petersborough, NH, pp. 301C-1 - 301C-7, March 1990.

D. S. Trimble, A.A. Garrison, E. C. Muly, M. J. Roberts, and S. J. Kercel,  "On-Line Chemical Analysis Applied to Distillation Control- A Status Report", American Laboratory, 22 (3), pp. 19-27, (1990).

A. A. Garrison, E. C. Muly, D. S. Trimble, M. J. Roberts, and C. F. Moore, "Raman Spectroscopy for On-line Distillation Process Control", ISA Proceedings, Vol. 44, Part1, pp. 257-363, October 1989.

A. A. Garrison, E.C. Muly, D. S. Trimble, and M. J. Roberts, "Quantitative Applications of Raman Spectroscopy for Distillation Process Control", Federation of Analytical Chemistry and Spectroscopy Societies, presented October 1989.

David S. Trimble and Emil C. Muly, "On-Line Chemical Composition Measurement", American Institute of Chemical Engineers, East Tennessee local section meeting, presented October 27, 1988.

D. P. Armstrong, W.H. Fletcher and D. S. Trimble, "Raman Spectroscopy Using a DEC PDP 11/34Computer", J. Raman Spec., 19, (1988). 

David S. Trimble and Gleb Mamantov, "Raman Spectroelectrochemistry of Molten Salts Utilizing a Photodiode Array Detector System", 

The Pittsburgh Conference and Exposition on Analytical Chemistry and Applied Spectroscopy, New Orleans, Louisiana, presented February 21, 1988.

David S. Trimble and Gleb Mamantov, "Raman Spectroscopy of Molten Salts Utilizing a Photodiode Array Detector System", 39th Southeast Regional Meeting of the American Chemical Society, Orlando, Florida, presented November 5, 1987.

D. P. Armstrong, W.H. Fletcher and D. S. Trimble, "Data Acquisition and Control of a Raman Spectrometer using a DEC PDP 11/34 Computer", prepared by the Oak Ridge Gaseous Diffusion Plant, for Martin Marietta Energy Systems, Inc., publicationK/QT-104, June 1987.