Research and Academic Interests
My academic and research interests lie in the area of analytical chemistry, specifically in the area of separation science. The courses I typically teach are in the areas of analytical chemistry, as well as general chemistry and forensic science.
Description of Research
One area of my research utilizes the technique of capillary electrophoresis (CE) for the separation of biological molecules such as peptides and proteins. These types of compounds are very relevant to the pharmaceutical and biotechnology fields, and often need to be separated and purified. CE is an ideal method to employ for these separations, due to its small sample volume requirements and increased resolutions obtained. One of the problems encountered with CE and protein or peptide separations often involves the biomolecule adsorbing to the capillary surface. Coatings, such as covalent or dynamic materials, often need to be employed to prevent this adsorption problem. In our lab we have utilized ion-exchange (IEX) stationary phases to help solve this problem.
A second area of my research involves a desert restoration project in Joshua Tree National Park, specifically near the Cottonwood Wash Oasis. This project is in collaboration with Dr. James Blauth in the Biology Department. Our part of this research involved the analysis of desert soil collected from the park looking for key nutrient levels often required of legumes. These nutrients often consist of Nitrogen, Potassium, Phosphorous, Iron, and Magnesium. Soil collected from two sites in the Cottonwood Wash (called our reference and disturbed sites) were analyzed for these key nutrients, specifically looking for any significant differences between the two sites.
Courses Offered at Redlands
- General Chemistry 131, General Chemistry 132
- Analytical Chemistry 330
- Advanced Laboratory 431
- First Year Seminar: Follow the Evidence, A Course on Forensic Science
- Chemistry 104 Whodunit! A course on Forensic Science.
- B.S, Chemistry, The University of WI-Stevens Point, 1990
- PhD., Analytical Chemistry, Purdue University, 1996.
Previous Teaching Experience
- Adjunct Assistant Professor, Maryville College 1997-1998
- Adjunct Assistant Professor, Pellissippi State Community College, 1997-1998
- Quality Control Chemist, Schwarz Pharma 1990-1991
- Research Associate, Microbial Insights, Inc., UT-Knoxville 1996-1997
- Analytical Post-Doctoral Research Associate, Oak Ridge National Labs 1998-1999
- Undergraduate Science Research Grant, Merck/AAAS 2003-2007
- Faculty Research Grant, University of Redlands (2) 2001-2003
- Hewlett Best Unfunded Grant Proposal, University of Redlands 2000-2001
Publications and Presentations
N. Grimsley, D.P. Schrum, “Analysis of Fountain Pen Inks by Capillary Electrophoresis,” presented at the Southern California Conference on Undergraduate Research, California State University, Los Angeles, November, 2007.
L. Norris, D.P. Schrum, “Comparison of Nitrate and Phosphate Concentrations in the Leaf Tissue of Ceridium Floridum, Acacia gregigii, and Prosopis glanulosa Grown in Soil Extracted from Joshua Tree National Park,” presented at the Southern California Conference on Undergraduate Research, California State University, Los Angeles, November, 2007.
J. Blauth, D. P. Schrum, T. Harp, H Woolverton, S. Guthrie, J. Garcia, I. Sandri,“Towards Revegetation of a Disturbed Desert Wash Using Native Woody Legumes, Rhizobia, and Arbuscular Mycorrhizas,” Botany & Plant Biology Joint Congress, July 2007.
D.P. Schrum, J. Moses, S. D. Gilman, “Investigations of Amyloid (AB) Fibrils Using Capillary Electrophoresis with Fluorescence Anisotropy Detection,” presented at the PITTCON 2006 meeting, held in Orlando, FL, March, 2006.
J.R. Blauth, D.P. Schrum, “Service Learning and Field Research at the University of Redlands: Desert Restoration in Joshua Tree National Park”, CUR Quarterly, 26, December (2005) 63-65.
A. Colclesser, D.P. Schrum, “Determination of Essential Plant Nutrient Levels in Joshua Tree National Park,” presented at the Southern California Conference on Undergraduate Research, University of California-Riverside, November, 2005.
C. McClain, D.P. Schrum, “Synthesis and Characterization of Poly (Acrylic Acid) Strong Cation Exchange Ligands in Open-Tubular Capillary Electrochromatography (OT-CEC),” presented at the PITTCON 2005 meeting, held in Orlando, FL, March, 2005.
vL. Lutke, H. Mitchell, J. Blauth, D.P. Schrum, “Exploring Restoration in Joshua Tree National Park using Rhizobia and Mycorrhizae,” presented at the Mojave Desert Science Symposium, held at the University of Redlands, Redlands, CA, November, 2004.
T. Emerick, D.P. Schrum, "Synthesis and Characterization of Poly (Acrylic Acid) Cation-Exchange Ligands for Peptide Separations in Open-Tubular Capillary Electrochromatography (OT-CEC)," presented at the PITTCON 2004 meeting, held in Chicago, IL, March, 2004.
C. Kruse, D.P. Schrum, "An Investigation of Fountain Pen Inks by Capillary Electrophoresis Obtained From Documents Under Various Environmental Conditions," presented at the 29th Annual Meeting of the Federation of Analytical Chemistry & Spectroscopy Societies (FACSS), Providence, RI, October, 2002.
M. Worthington, D.P. Schrum, "Analysis of Amyloid-B Peptides Using Capillary Electrophoresis", presented at the PITTCON 2002 Meeting, New Orleans, LA, March 2002.
D.P. Schrum, D. Mueller, "Analysis of Fountain Pen Inks by Capillary Electrophoresis: A Forensic Science Project," presented at the 221st American Chemical Society Meeting, San Diego, CA, April, 2001.
D.P. Schrum, C.T. Culbertson, S.C. Jacobson, J.M. Ramsey, "Microchip Flow Cytometry Using Electrokinetic Focusing," Anal. Chem., 71, 4173-4177, (1999).
D.P. Schrum, S. Alugupalli, S.T. Kelly, D.C. White, R. Fayer, "Structural Characterization of a "Signature" Phosphatidylethanalomine as the Major 10-Hydroxy Stearic Acid Containing Lipid of Oocysts," Lipids, Vol. 32, no. 7, 789-793, (1997).
D.C. White, D.B. Ringelberg, S.J. Macnaughton, S. Alugupalli, D.P. Schrum, "Signature Lipid Biomarker Analysis for Quantitative Analysis in situ of Environmental Microbial Ecology," ACS Symposium Series, "Application of Molecular Markers in Environmental Geochemistry," 671, 22-34, (1997), R. Eagenhouse, editor
D.P. Schrum, K. Smith, D.C. White, "Increased Sensitivity and Detection Limits for Nitro Containing Explosives by On-column HPLC Reductions and ESI/APCI MS," presented at the 45th American Society for Mass Spectrometry Conference on Mass Spectrometry, Palm Springs, CA, June, 1997.
- American Chemical Society
- Council on Undergraduate Research
- Phi Lamda Upsilon
- Omicron Delta Kappa