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This article in JEQ

  1. Vol. 21 No. 4, p. 537-539
     
    Received: Dec 9, 1991


    * Corresponding author(s):
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doi:10.2134/jeq1992.00472425002100040002x

Carbon-13 Nuclear Magnetic Resonance Spectra of Soil Water-Soluble Organic Carbon

  1. J.M. Novak,
  2. P.M. Bertsch * and
  3. G.L. Mills
  1. National Soil Tilth Lab., 2150 Pammel Dr., USDA-ARS, Ames, IA 50011;
    Division of Biogeochemistry, Savannah River Ecology Lab., Univ. of Georgia, Aiken, SC 29802.

Abstract

Abstract

Water-soluble organic carbon (WSOC) was extracted from the surface horizon (0–15 cm) of a South Carolina floodplain soil (Pickney series-sandy, silicious, thermic Cumulic Humaquepts) using either 1.2-µm Whatman glass fiber type C (GF) or polycarbonate (PC) (<0.4 µm) filters. The trend in functional group C distribution for both WSOC fractions was O-alkyl > aliphatic > aromatic > carboxylic acid > carbonyl structures. Overall, the 13C NMR spectra showed similar functional group C distributions for fractions obtained with both filters.

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