2.5 Mass Spectrometry
25
Element
Isotope
Mass
Abundance
Element
Isotope
Mass
Abundance
Dy
162.500
Hf
178.49
156 Dy 155.924283
0.20
174 Hf 173.940046
0.46
158 Dy 157.924409
0.34
176 Hf 175.941409
14.99
160 Dy 159.925198
8.24
177 Hf 176.943221
53.02
161 Dy 160.926933
66.84
178 Hf 177.943699
77.77
162 Dy 161.926798
90.15
179 Hf 178.944816
38.83
163 Dy 162.928731
88.10
180 Hf 179.946550 100
164 Dy 163.929175 100
Ta
180.94788
Ho
164.930322
180 Ta
179.947465
0.012
165 Ho 164.930322 100
181 Ta
180.947996 100
Er
167.259
W
183.84
162 Er
161.928778
0.41
180 W
179.946704
0.39
164 Er
163.929200
4.78
182 W
181.948204
86.49
166 Er
165.930293 100
183 W
182.950223
46.70
167 Er
166.932048
68.26
184 W
183.950931 100.0
168 Er
167.932370
80.52
186 W
185.954364
92.79
170 Er
169.935464
44.50
Re
186.207
Tm
168.934213
185 Re 184.952955
59.74
169 Tm 168.934213 100
187 Re 186.955753 100
Yb
173.04
Os
190.23
168 Yb 167.933897
0.41
184 Os 183.952489
0.05
170 Yb 169.934762
9.55
186 Os 185.953838
3.90
171 Yb 170.936326
44.86
187 Os 186.955751
4.81
172 Yb 171.936382
68.58
188 Os 187.955838
32.47
173 Yb 172.938211
50.68
189 Os 188.958148
39.60
174 Yb 173.938862 100
190 Os 189.958447
64.39
176 Yb 175.942572
40.09
192 Os 191.961481 100
Lu
174.967
Ir
192.217
175 Lu 174.940772 100
191 Ir
190.960594
59.49
176 Lu 175.942686
2.66
193 Ir
192.962926 100.0