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Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions
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Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions

Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions

12,066 Views

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08:57 min

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January 10, 2019

DOI:

10.3791/57464-v

DOI:
10.3791/57464-v

•

08:57 min
January 10, 2019

•

26 Views
, ,
1Department of Crop Sciences,University of Illinois Urbana-Champaign, 2Department of Land, Air and Water Resources,University of California Davis, 3Central Great Plains Resources Management Research,USDA ARS

Summary

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SOM underlies many soil functions and processes, but its characterization by FTIR spectroscopy is often challenged by mineral interferences. The described method can increase the utility of SOM analysis by FTIR spectroscopy by subtracting mineral interferences in soil spectra using empirically obtained mineral reference spectra.

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Infrared SpectroscopySoil Organic MatterMineral InterferenceSpectral SubtractionOrganic Carbon QualityWind ErosionSoil CarbonSodium HypochloriteOxidationCentrifugationOven DryingTotal Organic CarbonCombustion Gas Chromatography

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Margenot, A. J., Parikh, S. J., Calderón, F. J. Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions. J. Vis. Exp. (143), e57464, doi:10.3791/57464 (2019).

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