• 1969 - BA, chemistry, Grinnell College, Grinnell, Iowa
• 1969 - 1971 Peace Corps volunteer in chemistry program in the Republic of Korea
• 1980 - Ph.D., organic chemistry, University of Arkansas

• 2003 - present: Research Associate Professor, University of Arkansas
• 1989 - 2003: Research Assistant Professor, University of Arkansas
• 1980 - 1989: Research Associate, University of Arkansas

• I teach the chromatography and spectroscopy sections of the team-taught Analytical Research Techniques in Agronomy course (CSES 5214), which is taught in Fall of even years, and the chromatography section of the team-taught undergraduate-level course Analysis of Environmental Contaminants (ENSC 4034/4030L), which is taught in Spring of even years.

Reducing organic contaminants in the environment

• Rainwater gardens - We are just beginning, depending on funding, to do work on using rainwater gardens to reduce contaminant load, especially phosphorous, in surface runoff water.
• Rice water monitoring - We have an ongoing project to collect water every two weeks from April through August from four sites each on four rivers in the rice growing area of Arkansas.  Analysis is done for 10 to 13 compounds used in rice production.  The objective is to determine if any environmental problems are occurring when the problems would still be small and more easily solved.

Recycling of water in rice production

• If water is continually recycled from flooded rice fields to reservoirs and back to the fields or to other crops, is there a point where salts or other chemicals dissolved in water will concentrate to the point that the water may harm the crop.

Rice allelopathy

• We are trying to understand how some varieties of rice can inhibit weed growth.  The varieties that can do this are for various reasons not commercially useful.  The ultimate goal is to incorporate this trait into commercially useful rice.

Understanding developing resistance of some weeds to the herbicide clomazone (Command)

• Some barnyardgrass populations have developed resistance to the herbicide clomazone.  One theory for resistance is that the compound that is sprayed, clomazone, is not the active compound.  Rather, clomazone is metabolized in the plant to 5-ketoclomazone which is the active compound.  Plants that have resistance may either not produce the metabolite or degrade the metabolite much faster than susceptible plants.  We are working with Dr. Jason Norsworthy in our department to try to understand what is happening.  That knowledge may help us develop strategies to deal with the resistance.
  

• Mattice, John.   If you were a molecule in a chromatography column, what would you see?    Journal of Chemical Education  (2008),  85(7),  925-928.
• Thompson, Oriana A.; Wolf, Duane C.; Mattice, John D.; Thoma, Gregory J.   Influence of Nitrogen Addition and Plant Root Parameters on Phytoremediation of Pyrene-contaminated Soil.    Water, Air, & Soil Pollution  (2008),  189(1-4),  37-47.
• Mattice, J. D., Gbur, E. E., Greer, B. A., Skulman, B. W.  A Mobile Field Extractor for Extracting Water Samples While Driving between Sampling Sites.    Bulletin of Environmental Contamination and Toxicology  (2007),  78(1),  59-62.
• Pirani, A. L.; Brye, K. R.; Daniel, T. C.; Haggard, B. E.; Gbur, E. E.; Mattice, J. D.   Soluble metal leaching from a poultry litter-amended udult under pasture vegetation.    Vadose Zone Journal (2006) 5(3):1017-1034.
• Cobb, Jean M.; Mattice, John D.; Senseman, Scott A.; Dumas, Jose A.; Mersie, Wondi; Riley, Melissa B.; Potter, Thomas L.; Mueller, Thomas C.; Watson, Elizabeth B.  Stability of pesticides on solid-phase extraction disks after incubation at various temperatures and for various time intervals: interlaboratory study.    Journal of AOAC International (2006)  89(4):903-912.
• Riley, Melissa B.; Dumas, Jose A.; Gbur, Edward E.; Massey, Joseph H.; Mattice, John D.; Mersie, Wondi; Mueller, Thomas C.; Potter, Thomas; Senseman, Scott A.; Watson, Elizabeth.  Pesticide extraction efficiency of two solid phase disk types after shipping.    Journal of Agricultural and Food Chemistry  (2005),  53(13),  5079-5083.
• Ottis, Brian V.; Mattice, John D.; Talbert, Ronald E.  Determination of antagonism between cyhalofop-butyl and other rice (Oryza sativa) herbicides in barnyardgrass (Echinochloa crus-galli).    Journal of Agricultural and Food Chemistry  (2005),  53(10),  4064-4068. 
• Skulman, B. W.; Mattice, J. D.; Cain, M. D.; Gbur, E. E.  Evidence for allelopathic interference of Japanese honeysuckle (Lonicera japonica) to loblolly and shortleaf pine regeneration.    Weed Science  (2004),  52(3),  433-439. 
• Pirani, A.L., K.R. Brye, and J.D. Mattice. 2003. Soluble Constituents in Leachate and Runoff From Tall Fescue Amended with Poultry Litter. ASA Annual Meeting Abstracts.
• Senseman, Scott A.; Mueller, Thomas C.; Riley, Melissa B.; Wauchope, R. Don; Clegg, Chris; Young, Roddy W.; Southwick, Lloyd M.; Moye, H. Anson; Dumas, Jose A.; Mersie, Wondi; Mattice, John D.; Leidy, Ross B.  Interlaboratory Comparison of Extraction Efficiency of Pesticides from Surface and Laboratory Water Using Solid-Phase Extraction Disks.    Journal of Agricultural and Food Chemistry  (2003),  51(13),  3748-3752.
• Mersie, Wondi; Clegg, Chris; Wauchope, R. Don; Dumas, Jose A.; Leidy, Ross B.; Riley, Melissa B.; Young, Roddy W.; Mattice, John D.; Mueller, Thomas C.; Senseman, Scott A.  Interlaboratory comparison of pesticide recovery from water using solid-phase extraction disks and gas chromatography.    Journal of AOAC International  (2002),  85(6),  1324-1330. 
• Mattice, J. D.; Senseman, S. A.; Walker, J. T.; Gbur, E. E., Jr.  Portable system for extracting water samples for organic analysis.    Bulletin of Environmental Contamination and Toxicology  (2002),  68(2),  161-167.  CODEN: BECTA6  ISSN:0007-4861. 
• Mueller, Thomas C.; Senseman, Scott A.; Wauchope, R. D.; Young, Roddy W.; Southwick, Lloyd M.; Riley, Melissa B.; Moye, H. Anson; Dumas, Jose A.; Mersie, Wondie; Mattice, John D.; Leidy, Ross B.  Inter-laboratory comparison of solid-phase extraction disk recovery of atrazine, bromacil, chlorpyrifos, and metolachlor from water samples.    Abstracts of Papers, 222nd ACS National Meeting, Chicago, IL, United States, August 26-30, 2001  (2001),   
• Mattice, J.D., R.H. Dilday, E.E. Gbur, B.W. Skulman. 2001.,  Barnyardgrass growth inhibition with rice using high performance liquid chromatography to identify rice accession activity.  Agron. J. 93:8-11
• Richards, S. M.; McClure, G. Y. H.; Lavy, T. L.; Mattice, J. D.; Keller, R. J.; Gandy, J.  Propanil (3,4-Dichloropropionanilide) Particulate Concentrations Within and Near the Residences of Families Living Adjacent to Aerially Sprayed Rice Fields.    Archives of Environmental Contamination and Toxicology  (2001),  41(1),  112-116. 
• Mueller, Thomas C.; Senseman, Scott A.; Wauchope, R. Don; Clegg, Chris; Young, Roddy W.; Southwick, Lloyd M.; Riley, Melissa B.; Moye, H. Anson; Dumas, Jose A.; Mersie, Wondi; Mattice, John D.; Leidy, Ross B.  Recovery of atrazine, bromacil, chlorpyrifos, and metolachlor from water samples after concentration on solid-phase extraction disks: interlaboratory study.    Journal of AOAC International  (2000),  83(6),  1327-1333. 

Personal Information:

My wife and I live in the woods in a house I designed and built myself - framing, finishing inside and out, plumbing, electrical, most of roofing.  Previous building experience was building a bird feeder.  It’s nice to say that you truly designed and built your own house (as opposed to saying you had it built). I’m glad I did it, but now I’ve done it, and if we move I probably won’t do it again.

Non-Professional Interests:

• Reading (history, historical fiction, mystery, classics)
• Woodworking, primarily with non-power tools.  It’s slower, but it’s quieter.  Fits with living in the woods
• Canoeing in Boundary Waters Canoe Area Wilderness between Minnesota and Canada
• Volleyball
  
  
  • played on USVBA, now USAV, B, A, and AA teams as defensive specialist
  • coached USAVB men’s B, A, and AA teams and women’s B and A teams
  • coached two men’s 35 and over teams at national tournament (one team placed second in their division.)
  • took a team on a 10 day trip to Jakarta, Indonesia, to represent Arkansas in an international tournament