Innovations in Analytical Chemistry!

Ammonia Analyzer (Ammonia, Nitrate+Nitrite, Urea)


Chemiluminescent Biosensors: Alcohols, Glucose, Oxygen, H2O2


Oceanographic CO2 Analyzer


On-Line Chlorine Analyzer


On-Line Iodine Monitor


Organic Acid Analyzer: Formic, Acetic, and Propionic Acids.




  Related Publications:


Akse, J.R., Thompson, J.O., Sauer, R.L., and Atwater, J.E., 'Reagentless' Flow Injection Determination of Ammonia and Urea using Membrane Separation and Solid Phase Basification, Microchem. J., 59, 372-382, 1998.

Atwater, J.E., DeHart, J., and Wheeler, R.R., Jr., Dissolved Oxygen Determination by Electrocatalyzed Chemiluminescence with In-Line Solid Phase Media, J. Biolum. Chemilum., 13, 125-130, 1998.

Thompson, J.O., Akse, J.R., Wheeler, R.R., Jr., Wiseley, M.T., and Atwater, J.E., Microgravity Compatible Reagentless Instrumentation for Detection of Dissolved Organic Acids in Potable Water, Final Report, NASA Contract NAS9-97095, September 1997.

Atwater, J.E., Akse, J.R., and DeHart, J., Process for Analyzing CO2 in Seawater, U.S. Patent 5,643,799, July 1997.

Atwater, J.E., Akse, J.R., DeHart, J., and Wheeler, R.R., Jr., Enzymatic Determination of Ethanol using 'Reagentless' Electrocatalyzed Luminol Chemiluminescence, Anal. Lett., 30 (8), 1445-1453, 1997.

Atwater, J.E., Akse, J.R., DeHart, J., and Wheeler, R.R., Jr., 'Reagentless ' Flow Analysis Determination of Hydrogen Peroxide by Electrocatalyzed Luminol Chemiluminescence, Anal. Lett., 30 (1), 21-31, 1997.

Akse, J.R., Atwater, J.E., Schussel, L.J., Ingle, J.D., Jr., and Glaser, S., A Reagentless Fiber Optic Chemiluminescence Continuous Flow Chlorine Analyzer, Final Report, NSF Grant DMI 9413565, October 1995.

Atwater, J.E., Wheeler, R.R., Jr., and DeHart, J., Glucose and O2 Sensors for Mammalian Cell Bioreactor Control, Final Report NASA Contract NAS9-19305, July 1995.

Akse, J.R., Thompson, J.O., Sauer, R.L., Aten, L., Advanced Development of the In-Flight Ammonia Monitor Prototype, SAE Technical Paper Series No. 951687, presented at 25th International Conference on Environmental Systems, San Diego, July 10-13, 1995.

Atwater, J.E., Akse, J.R., DeHart, J., Wheeler, R.R., Jr., and Verostko, C.E., Chemiluminescent Ethanol Biosensor Development, SAE Technical Paper Series No. 951686, presented at 25th International Conference on Environmental Systems, San Diego, July 10-13, 1995.

Akse, J.R., and Thompson, J.O., In-Flight Ammonia Monitor, Final Report NASA Contract NAS9-18903, May 1995.

Atwater, J.E., Akse, J.R., DeHart, J., and Wheeler, R.R., Jr., Reagentless Chemiluminescence Based Fiber Optic Sensors for Regenerative Life Support in Space, SPIE Proceedings Series, 2574, 78-84, 1995.

Atwater, J.E., Wheeler, R.R., Jr., Sauer, R.L., and Schultz, J.R., A Multiplexed Four Channel On-Line Iodine Monitor, Instrum. Sci. Technol., 22, 217-229, 1994.

Atwater, J.E., Akse, J.R., DeHart, J., and Wheeler, R.R., Jr., Fiber-Optic Chemiluminescent Biosensors for Monitoring Aqueous Alcohols and Other Water Quality Parameters, Final Report, Contract No. NAS9-19021, Johnson Space Center, June, 1994.

Atwater, J.E., Akse, J.R., and DeHart, J., Oceanographic CO2 Sensor, Final Report, Grant No. DE-FG03-93ER81641/A000, U.S. Department of Energy, March 1994.

DeHart, J., and Atwater, J.E., PCWQM Solid Phase Module Development Program: Phase II. Life Test Results, Final Report, Contract No. GY5573-SC1.028, Astro International Corporation, October 1993.

Jeffers, E.L., Atwater, J.E., and DeHart, J., New Technologies for On-Line Water Quality Monitoring, SAE Technical Paper Series No. 932181, presented 23rd International Conference on Environmental Systems, Colorado Springs, July 1993.

Jeffers, E.L., Dougherty, D.R., Paxton, T.A., and Atwater, J.E., An On-Line Water Quality Monitor for Space Station Freedom, Paper No. 79c, presented at AIChE Spring National Meeting, Houston, March 1993.

Akse, J.R., Atwater, J.E., and Thompson, J.O., Inflight Ammonia Monitor, Phase I Final Report NASA Contract NAS9-18683, Prepared for Johnson Space Center, July 1992.

Jeffers, E.L., and Jolly, C.D., Development of the Process Control Water Quality Monitor for Space Station Freedom, SAE Technical Paper Series No. 911432, presented at 21st Intersociety Conference on Environmental Systems, San Francisco, July 1991.

Jolly, C.D., and Jeffers, E.L., Ultrapure Water Total Organic Carbon Analyzer - Advanced Component Development, SAE Technical Paper Series No. 911436, presented at 21st Intersociety Conference on Environmental Systems, San Francisco, July 1991.

Jolly, C.D., and DeHart, J., A Reagentless Separator for Removal of Inorganic Carbon from Solution, Final Report Contract NAS8-38460, Prepared for: Marshall Space Flight Center, Huntsville, Alabama, June 1990.


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