B.3 isotopes of common elements – HP Data Explorer 4 Series User Manual
Page 396
Appendix B Overview of Isotopes
B-8
Applied Biosystems
B
B.3 Isotopes of Common Elements
Table B-1 lists the natural abundance of isotopes for some
common elements seen in mass spectrometry
Table B-1 Isotopes of Common Elements
1
Isotope
Mass
Natural
abundance
(%)
Isotope
Mass
Natural
abundance
(%)
1
H
1.0078
99.985
31
P
30.9737
100
2
H
2.0141
0.015
32
S
31.9720
95.02
12
C
12
98.90
33
S
32.9714
0.75
13
C
13.0033
1.10
34
S
33.9678
4.21
14
N
14.0030
99.63
36
S
35.9670
0.02
15
N
15.0001
0.37
35
Cl
34.9688
75.77
16
O
15.9949
99.76
37
Cl
36.9659
24.23
17
O
16.9991
0.04
39
K
38.9637
93.2581
18
O
17.9991
0.200
40
K
39.9639
0.012
19
F
18.9984
100
41
K
40.9618
6.7302
23
Na
22.9897
100
79
Br
78.9183
50.69
28
Si
27.9769
92.23
81
Br
80.9162
49.31
29
Si 28.9764
4.67
127
I 126.9044
100
30
Si 29.9737
3.10
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1. Meth. Enzymol., McCloskey, J.A, ed., 1990, 193.