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- Ken Mopper
- Professor
- Department of Chemistry & Biochemistry
- 3100e Physical Science Bldg
-
Norfolk,
VA
23529
- 757-683-4094
- kmopper@odu.edu
- Web Page
-
Education
- MIT/Woods Hole Oceanographic Institute,
1973
- Major: Chemical Oceanography
- Degree: Ph. D.
- MIT,
1971
- Major: Chemistry (Marine)
- Degree: M.S.
- Queens College, The City University of New York,
1968
- Major: Chemistry
- Degree: B.A.
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Research Interests
- -Studies of the composition and origin of dissolved organic matter (DOM, humic substances) in seawater and other natural waters
using advanced analytical and spectroscopic techniques
-Spectral and chemical characterization of light-absorbing species (i.e., chromophores) in natural waters
-The impact of photochemical processes on estuarine, oceanic and global carbon cycling. These processes include CO_2 and CO
photochemical production and the effects photo-degradation products on DOM microbial growth and respiration
-Photo-production pathways and fate of free radicals (e.g., OH radicals) an stable species (e.g., CO_2, CO, formic acid, formaldehyde,
H_2O_2, and photo-reduced trace metals).
-The development/adaptation of analytical techniques for trace organics, total and dissolved organic carbon, and photo-chemically
formed species in natural waters.
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Articles
- White, E. M., Kieber, D. J., Sherrard, J., Miller, W. L., and Mopper, K. (2010). Carbon dioxide and carbon monoxide photoproduction quantum yields in the Delaware Estuary. Mar. Chem., 118, (pp. 11-21).
- Stubbins, A., Spencer, R. M., Chen, H., Hatcher, P. G., Mopper, K., Hernes, P. J., Mwamba, V. L., Mangangu, A. M., Wabakanghanzi, J. N., and Six, J. (2010). Illuminated darkness: molecular signatures of Congo River dissolved organic matter and its photochemical alteration as revealed
by ultrahigh percision mass spectrometry. L&O
- Tedetti, M., Joux, F., Charriere, B., Mopper, K., and Sempere, R. (2009). Contrasting effects of solar radiation and nitrates on the bioavailability of DOM to marine bacteria. J. Photochem. Photobiol.: A. Chemistry, 201, (pp. 243-247).
- Spencer, R. G., Stubbins, A., Hernes, P. J., Baker, A., Mopper, K., Aufdenkampe, A. K., Dyda, R. Y., Mwamba, V. L., Mangangu, A. M., Wabakanghanzi, J. N., and Six, J. (2009). Photochemical degradation of dissolved organic matter and dissolved lignin phenols from the Congo River. Journal of Geophysical Research, 114, (pp. G03010).
- Dalzell, B. J., Minor, E. C., and Mopper, K. (2009). Photodegradation of estuarine dissolved organic matter: A multi-method assessment of DOM transformations. Organic Geochemistry, 40, (pp. 243-257).
- Helms, J. R., Stubbins, A., Ritchie, J. D., Minor, E. C., Kieber, D. J., and Mopper, K. (2008). Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromorphic dissolved
organic matter. L&O, 53, (pp. 955-969).
- Stubbins, A., Hubbard, V., Uher, G., Law, C. S., Upstill-Goddard, R. C., Aiken, G. R., and Mopper, K. (2008). Relating carbon monoxide photoproduction to dissolved organic matter functionality. Environ. Sci. Technol., 42, (pp. 3271-3276).
- White, E. M., Kieber, D. J., and Mopper, K. (2008). Semi-automated method for determination of photochemically produced carbon dioxide in seawater. Limnol. Oceanog. - Methods, 6, (pp. 441-453).
- Mopper, K., Stubbins, A., Ritchie, J. D., Bialk, H. M., and Hatcher, P. G. (2007). Advanced Instrumental Approaches for Characterization of Marine Dissolved Organic Matter: Mass Spectroscopy and Nuclear Magnetic
Resonance Spectroscopy. Chemical Reviews, 107, (pp. 419-442).
- Minor, E. C., Dalzell, B. J., Stubbins, A., and Mopper, K. (2007). Evaluating the photoalteration of estuarine dissolved organic matter using direct temperature-resolved mass spectroscopy and
UV-visible spectroscopy. Aquatic Sciences, 69 (4), (pp. 440-455).
- Minor, E. C., Pothen, J., Dalzell, B., Abdulla, H., and Mopper, K. (2006). Effects of salinity changes on the photodegradation and UV-visible absorbance of terrestrial dissolved organic matter. Limnol. Oceanogr., 51, (pp. 2181-2186).
- Stubbins, A., Uher, G., Law, C. S., Mopper, K., Robinson, C., and Upstill-Goddard, R. C. (2006). Open ocean carbon monoxide photoproduction. Deep-Sea Research II, 53, (pp. 1685-1694).
- Anesio, A. M., Graneli, W., Aiken, G., Kieber, D. J., and Mopper, K. (2005). Effect of humic substance photodegradation on bacterial growth and respiration in lake water. Appl. Environ. Microbiol., 71, (pp. 6267-6275).
- Miller, G. W., Morgan, C. A., Kieber, D. J., King, D. W., Snow, J. A., Heikes, B. G., Mopper, K., and Kiddle, J. J. (2005). Hydrogen peroxide method intercomparison study in seawater. Mar. Chem., 97, (pp. 4-13).
- Simjouw, J. P., Minor, E. C., and Mopper, K. (2005). Isolation and characterization of estuarine dissolved organic matter: Comparison of ultrafiltration and C_18 solid-phase extraction
techniques. Mar. Chem., 96, (pp. 219-235).
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Presentations
- Addressing the unknown composition of marine DOM: Is there a need for representative standards of DOM for chemical oceanography?
Unknown Knowns & Known Unkowns
- Conference Name:
- Location: Savannah, GA
- Date: February, 2009
- Authors/Presenters:
Mopper, K.
Stubbins, A.
Hatcher, P. G.
Perdue, E. M.
- Darkness illuminated: Molecular signatures of Congo River dissolved organic matter (DOM) and its photochemical alteration
- Conference Name:
- Location: Savannah, GA
- Date: February, 2009
- Authors/Presenters:
Stubbins, A.
Spencer, R. G.
Chen, H.
Hatcher, P. G.
Mopper, K.
Hernes, P. J.
Aufdenkampe, A. K.
Baker, A.
Dyda, R. Y.
Mwamba, V. L.
Mazedi, A. M.
Wabakanghanzi, J. N.
Six, J.
- Isolation of marine DOM using coupled reverse osmosis and electrodialysis
- Conference Name:
- Location: Savannah, GA
- Date: February, 2009
- Authors/Presenters:
Green, N. W.
Shantz, A.
Chen, H.
Teja, A. S.
Mao, J.
Mopper, K.
Hatcher, P. G.
Stubbins, A.
Perdue, E. M.
- Molecular characterization of dissolved organic matter from surface, oxygen minimum layer and deep ocean by electrospray ionization
Fourier transform ion cyclotron resonance mass spectrometry
- Conference Name:
- Location: Savannah, GA
- Date: February, 2009
- Authors/Presenters:
Chen, H.
Hatcher, P. G.
Stubbins, A.
Mopper, K.
Perdue, E. M.
Green, N.
- New approaches for evaluating oceanic absorption spectra
- Conference Name:
- Location: Savannah, GA
- Date: February, 2009
- Authors/Presenters:
Helms, J.
Mopper, K.
Stubbins, A.
Kieber, D.
- Photo- and biodegradation of extracellular dissolved organic matter released by cyanobacteria
- Conference Name:
- Location: Savannah, GA
- Date: February, 2009
- Authors/Presenters:
Bittar, T. B.
Stubbins, A.
Mopper, K.
Vieira, A. H.
- Absorption spectra and spectral slopes as indicators of molecular weight and source of dissolved organic matter: Implications
in ballast water source and remote sensing of coastal ocean color
- Sponsoring Organization: Georgia Tech, Department of Earth and Atmospheric Sciences
- Date: April 11, 2008
- Authors/Presenters:
Mopper, K.
- Absorbance spectral slopes and slope ratios as indicators of molecular weight and sources of estuarine CDOM
- Conference Name:
- Location: Orlando, FL
- Date: March, 2008
- Authors/Presenters:
Mopper, K.
Helms, J.
Stubbins, A.
Ritchie, J.
Minor, E.
Kieber, D.
- Relating carbon monoxide photoproduction to organic matter functionality
- Conference Name:
- Location: Orlando, FL
- Date: March, 2008
- Authors/Presenters:
Stubbins, A.
Mopper, K.
Hubbard, V.
Uher, G.
Upstill-Goddard, R. G.
Law, C. S.
Aiken, G.
- Semi-automated method for determination of photochemically produced carbon dioxide from dissolved organic matter in marine
waters
- Conference Name:
- Location: Orlando, FL
- Date: March, 2008
- Authors/Presenters:
White, E. M.
Wang, W.
Kieber, D. J.
Mopper, K.
- The photochemical interference in oxygen-based measurements of primary productivity
- Conference Name:
- Location: Orlando, FL
- Date: March, 2008
- Authors/Presenters:
Helms, J. R.
Stubbins, A.
Mopper, K.
- Absorbance spectral slopes and slope ratios as indicators of CDOM molecular weight and oceanographic processes
- Conference Name:
- Location: Tilton School, NH
- Date: August, 2007
- Authors/Presenters:
Helms, J. R.
Mopper, K.
Ritchie, J.
Stubbins, A.
Minor, E. C.
Kieber, D. J.
- Photodegradation of estuarine dissolved organic matter: a multiproxy investigation of DOM transformations
- Conference Name:
- Location: Tilton School, NH
- Date: August, 2007
- Authors/Presenters:
Minor, E. C.
Dalzell, B.
Mopper, K.
- Using ^18O as a tracer of oxygen in the photochemical alteration of dissolved organic matter
- Conference Name:
- Location: Tilton School, NH
- Date: August, 2007
- Authors/Presenters:
Davis, J. A.
Stubbins, A.
Helms, J.
Dias, R. F.
Mopper, K.
- Using DOM absorbance to characterize natural waters, including wetland and marine samples: New evidence for in situ DOM degradation
during estuarine transit
- Conference Name: Smithsonian Environmental Research Center
- Sponsoring Organization: Smithsonian Environmental Research Center
- Location: Annapolis, MD
- Date: April, 2007
- Authors/Presenters:
Helms, J. R.
Stubbins, A.
Ritchie, J.
Minor, E. C.
Kieber, D. J.
Mopper, K.
- New approaches to using absorbance and spectral slopes to evaluate DOM molecular weight and degradation - implications in
estuarine C-cycling
- Sponsoring Organization: University of North Carolina at Wilmington, Department of Chemistry and Biochemistry
- Date: April 13, 2007
- Authors/Presenters:
Mopper, K.
- Fluorescence intercalibration experiment: A multi-laboratory comparison of correction procedures for fluorescence analysis
of dissolved organic matter
- Conference Name:
- Location: San Francisco, CA
- Date: December, 2006
- Authors/Presenters:
Boehme, J.
Stedmon, C.
Boyd, T.
Chen, R.
Coble, P.
Cooper, W.
Mopper, K.
Wells, M.
Zepp, R.
- Using ^18O as a tracer of oxygen in the photochemical alteration of dissolved organic matter
- Conference Name:
- Location: San Francisco, CA
- Date: December, 2006
- Authors/Presenters:
Davis, J. A.
Stubbins, A.
Helms, J. R.
Dias, R. F.
Mopper, K.
- A non-radioactive method for estimating bacterial activity: Alimar Blue
- Sponsoring Organization: Federal University of Sao Carlos (Sao Paulo State)
- Location: Brazil
- Date: August 21, 2006
- Authors/Presenters:
Mopper, K.
- Microbial and photochemical oxidation of organic matter estuaries and lakes
- Sponsoring Organization: Federal University of Sao Carlos (Sao Paulo State)
- Location: Brazil
- Date: August 21, 2006
- Authors/Presenters:
Mopper, K.
- Photochemical reactivity of dissolved organic matter along an estuarine gradient
- Conference Name:
- Date: June, 2006
- Authors/Presenters:
White, E. M.
Kieber, D. J.
Mopper, K.
- DOM photodegradation in a temperate estuary
- Conference Name:
- Location: Honolulu, Hawaii
- Date: February, 2006
- Authors/Presenters:
Minor, E. C.
Mopper, K.
Dalzell, B. J.
- Effect of pH and ionic strength on terrestrial DOM photoreactivity: Implications in estuarine DOM transformations
- Conference Name:
- Location: Honolulu, Hawaii
- Date: February, 2006
- Authors/Presenters:
Mopper, K.
Helms, J. R.
Stubbins, A.
Chen, N.
Minor, E. C.
Dalzell, B.
- Evaluating CO photoproduction pathways from DOM using simple aromatics and lignin phenolics as model DOM chromophoric sites
- Conference Name:
- Location: Honolulu, Hawaii
- Date: February, 2006
- Authors/Presenters:
Hubbard, V. A.
Stubbins, A.
Mopper, K.
- Oceanic carbon monoxide photoproduction
- Conference Name:
- Location: Honolulu, Hawaii
- Date: February, 2006
- Authors/Presenters:
Stubbins, A.
Uher, G.
Law, C.
Mopper, K.
Robinson, C.
Upstill-Goddard, R.
- Photochemical production of dissolved inorganic carbon in the Delaware Estuary and Northwest Atlantic Ocean
- Conference Name:
- Location: Honolulu, Hawaii
- Date: February, 2006
- Authors/Presenters:
White, E. M.
Kieber, D. J.
Stubbins, A.
Mopper, K.
- Spectral slope as an indicator of molecular weight in chromophoric dissolved organic matter
- Conference Name:
- Location: Honolulu, Hawaii
- Date: February, 2006
- Authors/Presenters:
Helms, J. R.
Mopper, K.
Minor, E. C.
Kieber, D. J.
- The use of Alamar Blue for monitoring bacterial activity in natural waters: Application to the effects of photochemistry
- Conference Name:
- Location: Honolulu, Hawaii
- Date: February, 2006
- Authors/Presenters:
Ritchie, J.
Mopper, K.
- Effect of pH on the photoreactivity of terrestrial DOM during estuarine transport
- Conference Name:
- Location: Santiago de Compastelo, Spain
- Date: June, 2005
- Authors/Presenters:
Mopper, K.
Chen, N.
Helms, J. R.
Minor, E. C.
- Effect of salinity on the photoreactivity of terrestrial dissolved organic matter from Great Dismal Swamp
- Conference Name:
- Location: Santiago de Compastelo, Spain
- Date: June, 2005
- Authors/Presenters:
Minor, E. C.
Pothen, J.
Mopper, K.
- Photochemical transformation of terrestrial dissolved organic matter in the Delaware estuary
- Conference Name:
- Location: Santiago de Compastelo, Spain
- Date: June, 2005
- Authors/Presenters:
White, E. M.
Kieber, D. J.
Mopper, K.
- Photodegradation of dissolved organic matter from a temperate estuary (GEOC 34)
- Conference Name:
- Location: San Diego, CA
- Date: March, 2005
- Authors/Presenters:
Minor, E. C.
Mopper, K.
- Effects of salinity changes on the photodegradation of dissolved organic matter from Great Dismal Swamp, VA
- Conference Name:
- Location: Salt Lake City, Utah
- Date: February, 2005
- Authors/Presenters:
Pothen, J.
Minor, E. C.
Mopper, K.
- 2006: Most Inspirational Faculty Member , ODU College of Sciences
- 2006: Selected for an interactive lunch meeting by Present Runte, Old Dominion University
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Contracts, Grants and Sponsored Research