2.5 Mass Spectrometry
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2.5.5 Isotopic Abundances of Various Combinations of Chlorine,
Bromine, Sulfur, and Silicon
Elements
Mass Relative
abundance
Elements
Mass Relative
abundance
Elements
Mass Relative
abundance
Cl 1
35
100
Br 1
79
100
S 1
32
100
37
31.96
81
97.28
33
0.80
34
4.52
Cl 2
70
100
Br 2
158
51.40
72
63.92
160
100
S 2
64
100
74
10.21
162
48.64
65
1.60
66
9.05
Cl 3
105
100
Br 3
237
34.27
68
0.20
107
95.88
239
100
109
30.64
241
97.28
S 3
96
100
111
3.26
243
31.54
97
2.40
98
13.58
Cl 4
140
78.22
Br 4
316
17.61
99
0.22
142
100
318
68.53
100
0.61
144
47.94
320
100
146
10.21
322
64.85
S 4
128
100
148
0.82
324
15.77
129
3.20
130
18.12
Cl 5
175
62.53
Br 5
395
10.57
131
0.43
177
100
397
51.40
132
1.23
179
63.92
399
100
181
20.43
401
97.28
S 5
160
100
183
3.26
403
47.32
161
4.00
185
0.21
405
9.21
162
22.66
163
0.72
Cl 6
210
52.15
Br 6
474
5.43
164
2.05
212
100
476
31.70
166
0.09
214
79.90
478
77.10
216
34.05
480
100
218
8.16
482
72.96
220
1.04
484
28.39
222
0.06
486
4.60