13C NMR Estimates of Carbon Distribution in IHSS Samples




Sample
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
Standard HA

Suwannee River I *

1S101H

8

19

37

9

7

21

Suwannee River II #

2S101H

6

15

31

7

13

29

Elliott Soil

1S102H

6

18

50

4

6

16

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

Elliott Soil I *

1S102F

12

25

30

1

9

22

Elliott Soil II

2S102F
nd
nd
nd
nd
nd
nd

Pahokee Peat I *

1S103F

7

28

34

3

9

20

Pahokee Peat II

2S103F
nd
nd
nd
nd
nd
nd

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

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

Reference: K. A. Thorn, D. W. Folan, and 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 whch were measured by Dr. Patrick Hatcher at Department of Chemistry, Ohio State 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.


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