13C NMR Estimates of Carbon Distribution

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Cat. No. Carbonyl Carboxyl Aromatic Acetal Heteroaliphatic Aliphatic
220-190 ppm 190-165 ppm 165-110 ppm 110-90 ppm 90-60 ppm 60-0 ppm
 

Reference: K.A. Thorn, D.W. Folan, P. MacCarthy (1989), Characterization of the International Humic Substances Society Standard and Reference Fulvic and Humic Acids by Solution State Carbon-13 (13C) and Hydrogen-1 (1H) Nuclear Magnetic Resonance Spectrometry, U.S. Geological Survey, Water-Resources Investigations Report 89-4196, Denver, CO, 93 pp.

# The peak areas from which these percentages are calculated were obtained from solid-state CPMAS 13C NMR spectra which were measured by Dr. Patrick Hatcher at Department of Chemistry, The Ohio State University and Department of Chemistry and Biochemistry, Old Dominion University.

This table contains the electronically integrated peak area percentages for selected ranges of chemical shift.
An * means that a sample is no longer available, and nd means that an item was not determined.
Standard HA
Suwannee River I * 1S101H 8 19 37 9 7 21
Suwannee River II* # 2S101H 6 15 31 7 13 29
Suwannee River III * # 3S101H 3.9 12.8 35.3 8.9 13.4 23.9
Elliott Soil I * 1S102H 6 18 50 4 6 16
Elliott Soil IV * # 4S102H 1 11 41 6 14 27
Elliott Soil V # 5S102H 1.0 14.8 48.3 5.1 9.6 16.2
Pahokee Peat 1S103H 5 20 47 4 5 19
Leonardite 1S104H 8 15 58 4 1 14
Standard FA
Suwannee River I * 1S101F 7 20 24 5 11 33
Suwannee River II # 2S101F 5 17 22 6 16 35
Suwannee River III # 3S101F 4.2 15.6 28.9 8.1 13.3 27.4
Elliott Soil I * 1S102F 12 25 30 1 9 22
Elliott Soil II * 2S102F nd nd nd nd nd nd
Elliott Soil III * 3S102F nd nd nd nd nd nd
Elliott Soil IV * 4S102F nd nd nd nd nd nd
Elliott Soil V # 5S102F 2.5 17.5 33.3 5.7 13.9 24.2
Pahokee Peat I * 1S103F 7 28 34 3 9 20
Pahokee Peat II # 2S103F 3.6 18.7 39.0 6.0 10.9 18.4
Reference HA
Suwannee River * 1R101H nd nd nd nd nd nd
Pahokee Peat * 1R103H nd nd nd nd nd nd
Nordic Lake * 1R105H 10 19 38 7 11 15
Summit Hill Soil * 1R106H 7 19 30 4 14 25
Waskish Peat # * 1R107H 8 18 42 6 8 18
Reference FA
Suwannee River * 1R101F nd nd nd nd nd nd
Pahokee Peat * 1R103F nd nd nd nd nd nd
Nordic Lake * 1R105F 10 24 31 7 12 18
Waskish Peat # * 1R107F 7 19 36 6 12 20
Pony Lake # * 1R109F 1.2 17 12 0.2 8.4 61
Aquatic NOM
Suwannee River # 1R101N 8 20 23 7 15 27
Nordic Lake * 1R108N 8 21 19 5 16 31
Upper Mississippi R # 1S110N 3 14 19 7 20 37
Bulk Materials
Elliott Soil BS102M nd nd nd nd nd nd
Pahokee Peat BS103P nd nd nd nd nd nd
Leonardite BS104L nd nd nd nd nd nd