. Author manuscript; available in PMC: 2019 Feb 1.

Published in final edited form as: Int J Mass Spectrom. 2017 Jan 16;414:80–86. doi: 10.1016/j.ijms.2017.01.002

Table 3.

Data for 8 analyses of Re ribbon with only activator (5 μg each La and Gd loaded). Errors are 2SD internal precisions and reflect in-run evolution of oxygen isotopic compositions.

Analysis #	¹⁸O/¹⁶O	2SD (‰)	¹⁷O/¹⁶O	2SD (‰)
1	0.002085	5.4	0.0003894	6.2
2	0.002090	7.6	0.0003905	7.1
3	0.002100	2.6	0.0003917	3.8
4	0.002110	2.9	0.0003926	3.9
5	0.002125	2.3	0.0003940	4.7
6	0.002098	4.1	0.0003919	3.8
7	0.002088	8.1	0.0003906	9.1
8	0.002074	8.1	0.0003896	5.7
Mean	0.002096	7.7‰	0.0003913	4.1 ‰