HP Data Explorer 4 Series - 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.