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Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions
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环境科学
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JoVE 杂志 环境科学
Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions

Improving Infrared Spectroscopy Characterization of Soil Organic Matter with Spectral Subtractions

DOI:
10.3791/57464-v

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08:57 min

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January 10, 2019

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, ,
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

Chapters

  • 00:04Title
  • 01:28SOM Removal by Chemical Oxidation and High-temperature Combustion
  • 03:26DRIFT Spectroscopy
  • 05:48Results: Soil Organic Matter Characterization by FTIR
  • 07:35Conclusion

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.

Tags

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

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