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Your search keyword '"Frant, M. S"' showing total 14 results
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14 results on '"Frant, M. S"'

3. Carbon scrubber

Author

Frant, M. S

Subjects
Materials
Abstract

Inorganic carbon is removed from samples to be analyzed for "total organic carbon". In automated water analysis systems, semipermeable membrane separates two sample streams, one treated with acid, other with base. Carbonate and bicarbonated ions are converted to dissolved CO2 by acid; reverse process occurs in basic stream. Only CO2 is passed by membrane, from acid treated stream to base treated stream. Acidic stream emerges free of all inorganic carbon.

Published
1981

4. Meter for very slow flows

Author

Baxter, W. J., Jr, Frant, M. S, and West, S. J

Subjects
Machinery
Abstract

Solid-state sensing unit developed for use with NASA's Water-Quality Monitoring System can detect small velocity changes in slow moving fluid. Nonprotruding sensor is applicable to numerous other uses requiring sensitive measurement of slow flows.

Published
1978

5. Electrochemistry on Mars

Author

West, S. J., Frant, M. S., Wen, X., Geis, R., Herdan, J., Gillette, T., Hecht, M. H., Schubert, W., Grannan, S., and Samuel Kounaves

Subjects
Soil, Extraterrestrial Environment, Research Design, Exobiology, Electrochemistry, Mars, Biosensing Techniques, Equipment Design, Spacecraft
Abstract

Researchers describe research design and equipment for electrochemical analysis of Martian soil. The Wet Chemistry Laboratory (WCL) was designed for the Mars Surveyor 2001 Lander by the Mars Environmental Compatibility Assessment (MECA) team. The WCL consists of four beakers, each containing an integral array of electrochemical sensors. In addition to describing WCL design, the article discusses WCL sensor selection and design, analytical goals of the MECA experiments, expected composition of the Martian regolith, survival and performance testing, and reference electrode selection. The description of the research design describes experiment initiation, warm-up, leaching solution, calibration, sampling, analysis, reagent addition, and data analysis.

12. Electrochemistry on Mars.

Author

West SJ, Frant MS, Wen X, Geis R, Herdan J, Gillette T, Hecht MH, Schubert W, Grannan S, and Kounaves SP

Subjects
Biosensing Techniques, Equipment Design, Exobiology, Extraterrestrial Environment, Research Design, Spacecraft instrumentation, Electrochemistry instrumentation, Electrochemistry methods, Mars, Soil analysis
Published
1999

14. Electrode for sensing fluoride ion activity in solution.

Author

Frant MS and Ross JW Jr

Subjects
Chemistry Techniques, Analytical instrumentation, Fluorides analysis
Abstract

Electrodes constructed from single-crystal sections of rare earth fluorides respond to fluoride ion activity over more than five orders of magnitude and show a high selectivity for fluoride over other common anions. These electrodes can be used for either direct measuremnent of fluoride ion activity or detection of the end point in titration.

Published
1966
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