Chemistry: analytical and immunological testing – Composition for standardization – calibration – simulation,...
Reexamination Certificate
2007-02-26
2009-06-23
Warden, Jill (Department: 1797)
Chemistry: analytical and immunological testing
Composition for standardization, calibration, simulation,...
C106S456000, C116S206000, C423S632000, C524S431000
Reexamination Certificate
active
07550297
ABSTRACT:
The present invention present invention relates to improved IRIS Fe oxide paint compositions, to the dried (or cured) residue of such paints, and to devices upon which such paint compositions have been applied (IRIS devices) used to assess reducing conditions in soils, especially wetland soils. The improved IRIS Fe oxide paints contain from about 30 to about 70 mole percent goethite, more preferably, from about 40 to about 60 mole percent goethite, and still more preferably, about 50 mole percent goethite.
REFERENCES:
patent: 6766762 (2004-07-01), Jenkinson et al.
Castenson, K.L. (2004) “Hydromorphology of Piedmont Floodplain Soils” M.S. Thesis, University of Maryland.
Anonymous (2006) “Field Indicators of Hydric Soils in the United States, A Guide for Identifying and Delineating Hydric Soils, Version 6.0” U.S. Army Corps of Engineers.
Anonymous (2000) The Hydric Soil Technical Standard, Deliberations of National Technical Committee for Hydric Soils (NTCSH).
Anonymous (2006) Erratta “Field Indicators of Hydric Soils in the United States, A Guide for Identifying and Delineating Hydric Soils, Version 6.0” U.S. Army Corps of Engineers (G.W. Hurt et al. Eds.).
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Rabenhorst, M.C. et al. (2006) “Reduction of Iron Oxides in Wetland Soils” 18th World Congress of Soil Science, Philadelphia, PA. Jul. 9-15, 2006. Abstracts.
Rabenhorst, M. C. et al. (2006) Synthesized Iron Oxides Used as a Tool for Documenting Reducing Conditions in Soils. 18th World Congress of Soil Science, Philadelphia, PA. Jul. 9-15, 2006 Abstracts.
Rabenhorst, M.C. et al. (May 23, 2006) “Synthetic Iron Oxides as an indicator of Reduction in Soils (IRIS)” Soil Sci. Am. J. 70:1227-1236.
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Jenkinson, B. (2002) “Indicators of Reduction in Soils (IRIS): A Visual Method for the Identification of Hydric Soils,” Ph. D. Diss. Purdue Univ., West Lafayette, IN.
Jenkinson, B.J. and Franzmeier, D.P. (2006) “Development and Evaluation of Fe-Coated Tubes That Indicate Reduction in Soils,” Soil Sci. Soc. Am. J. 70:183-191.
Castenson, K.L. and Rabenhorst, M.C. (2006) “Indicator of Reduction in Soil (IRIS): Evaluation of a New Approach for Assessing Reduced Conditions in Soil,” Soil Sci. Soc. Am. J. 70:1222-1226.
Rabenhorst, M.C. and Castenson, K.L. (2005) “Temperature Effects on Iron Reduction in a Hydric soil,” Soil Sci. 170:734-742.
Schwertmann, U. et al. (1983) “Effect of pH on the Formation of Goethite and Hematite from Ferrihydrite,” Clays and Clay Minerals 31:277-284.
Auerbach Jeffrey I.
Edell Shapiro & Finnan LLC
Gerido Dwan A
University of Maryland College Park
Warden Jill
LandOfFree
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