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6Mar13 Prism Run. δ18O vs. port number. CM12 shows a monotonic drift towards lower values. When corrected for drift the standard deviation is 0.04 permil.

6Mar13 Prism Run. CM12 standard δ13C vs. δ18O.

6Mar13 Prism Run. CM12 standard δ18O vs. CaCO3 mass.





Test Run of March 13, 2013


Run setup: RV 2, RV 2 and boats were boiled for 30 minutes in a 3% RBS 50 cleaning solution using Milli-Q water and then cooled and soaked overnight. Run used the new acid made by dissolving P2O5 in 99.9% phosphoric acid, and a small stirbar magnet. The stirbar magnet and boats were the same used in the previous run on February 7th. This run followed the removal and cleaning in a DCM/Methanol mixture of the water trap, the corregated vacuum line connecting CP to LV/HV and the section of line between the water trap and external cold finger.

Results/Observations.
1.CM12 d18O standards showed a monotonic decrease as a function of port number. Corrected for drift the d18O standard deviationis 0.05 pemil. 2. d13C vs. d18O showed a modest correlation and a slope of 2.

************************************ ************************************ ************************************
Date Port # Sample ID Chops Transducer Ion Guage (xE-8 mBar) Ion G. (S/R) Mass 44 (xE-9 A) Mass 44 (S/R) d13C raw stdev d18O raw stdev
13-03-2013 1 CM12 0 -3.33 4.76 0.98 8.46 0.98 2.06 0.00 0 -1.89 0.01 0
13-03-2013 2 CM12 0 -3.95 4.93 1.00 10.07 0.98 2.04 0.01 0 -1.97 0.01 0
13-03-2013 3 CM12 1 -7.49 4.65 0.99 9.46 0.99 2.03 0.00 0 -2.07 0.01 0
13-03-2013 4 CM12 2 -12.90 4.36 0.99 7.46 0.99 2.06 0.01 0 -2.03 0.01 0
13-03-2013 5 CM12 0 -2.18 3.78 1.01 5.74 0.97 2.05 0.00 0 -1.99 0.01 0
13-03-2013 6 CM12 3 1.77 4.32 0.99 7.55 0.99 2.05 0.01 0 -1.99 0.01 1
13-03-2013 7 CM12 0 -2.70 4.18 0.99 7.18 0.98 2.05 0.00 1 -2.02 0.02 0
13-03-2013 8 CM12 0 -0.52 2.97 1.01 2.01 0.98 2.09 0.01 0 -2.01 0.02 0
13-03-2013 9 CM12 0 -2.29 4.07 0.98 6.12 0.97 2.05 0.00 1 -2.04 0.01 0
13-03-2013 11 CM12 0 -1.46 3.68 1.00 4.68 0.98 1.94 0.00 1 -2.22 0.01 1
13-03-2013 12 CM12 0 -3.12 4.38 1.01 8.12 0.98 2.03 0.00 0 -2.12 0.01 0
13-03-2013 13 CM12 0 -2.70 4.05 1.02 6.98 0.98 2.03 0.00 1 -2.07 0.01 0
13-03-2013 14 CM12 0 -2.50 4.07 0.93 6.52 0.97 2.01 0.01 0 -2.14 0.01 0
13-03-2013 15 CM12 1 -4.47 3.71 1.04 5.69 0.99 2.03 0.01 1 -2.10 0.01 1
13-03-2013 16 CM12 0 -4.06 4.56 1.05 9.22 0.98 2.03 0.00 1 -2.07 0.01 1
13-03-2013 17 CM12 0 -1.87 3.76 0.99 5.38 0.98 2.05 0.00 1 -2.07 0.01 0
13-03-2013 18 CM12 1 -5.30 3.99 1.05 6.53 0.99 2.02 0.01 1 -2.17 0.02 1
13-03-2013 19 CM12 1 -3.95 3.69 1.01 5.05 0.99 2.00 0.01 1 -2.14 0.02 1
13-03-2013 20 CM12 1 -4.78 3.87 0.97 5.77 0.99 2.04 0.00 1 -2.15 0.00 1
13-03-2013 21 CM12 0 -2.08 3.92 0.98 5.69 0.98 2.02 0.01 0 -2.13 0.01 0
13-03-2013 22 CM12 0 -1.25 3.34 1.00 3.63 0.98 2.05 0.01 1 -2.13 0.01 1
13-03-2013 23 CM12 1 -3.85 3.74 1.00 4.90 0.99 2.01 0.00 0 -2.14 0.01 0
13-03-2013 24 CM12 1 -3.85 3.62 1.00 4.64 0.99 2.03 0.00 0 -2.16 0.01 1
13-03-2013 25 CM12 0 -1.98 3.81 1.00 5.45 0.98 2.02 0.01 1 -2.15 0.02 0
13-03-2013 26 CM12 0 -2.60 3.99 1.00 6.53 0.97 2.02 0.00 1 -2.13 0.01 1
13-03-2013 27 CM12 1 -5.20 4.01 1.01 6.31 0.99 2.03 0.01 0 -2.16 0.00 0
14-03-2013 28 CM12 0 -2.81 4.12 0.99 6.91 0.97 2.04 0.01 0 -2.11 0.00 1
14-03-2013 29 CM12 1 -3.54 3.57 1.01 4.32 0.99 2.02 0.01 0 -2.20 0.00 1
14-03-2013 30 CM12 2 -9.26 4.10 0.98 5.21 0.99 2.05 0.01 0 -2.14 0.01 0
14-03-2013 31 CM12 1 -2.50 3.35 0.99 2.95 0.99 2.06 0.01 0 -2.18 0.01 1
14-03-2013 32 CM12 0 -1.04 3.29 0.98 3.03 0.98 2.01 0.00 0 -2.15 0.02 0
14-03-2013 33 CM12 0 -1.98 3.92 1.00 5.85 0.98 2.02 0.01 0 -2.11 0.01 1
14-03-2013 34 CM12 1 -3.12 3.49 1.01 3.94 0.99 2.01 0.00 0 -2.23 0.01 0
14-03-2013 35 CM12 0 -0.94 3.28 0.99 2.84 0.98 1.96 0.01 0 -2.22 0.01 1
14-03-2013 36 CM12 0 -2.29 3.97 0.98 5.79 0.98 1.99 0.00 0 -2.22 0.01 0
14-03-2013 37 CM12 1 -3.64 3.66 1.06 4.65 0.99 2.03 0.00 1 -2.19 0.01 0
14-03-2013 38 CM12 1 -3.33 3.46 0.99 3.61 0.99 2.02 0.01 0 -2.21 0.01 0
14-03-2013 39 CM12 1 -2.18 3.17 1.00 2.83 1.00 2.02 0.01 1 -2.20 0.01 1
14-03-2013 40 CM12 1 -2.50 3.37 1.00 3.38 0.99 1.84 0.01 0 -2.37 0.01 0
14-03-2013 41 CM12 2 -5.20 3.16 0.98 2.77 1.00 2.03 0.01 0 -2.19 0.01 0
14-03-2013 42 CM12 2 -5.72 3.23 1.01 3.18 0.99 2.01 0.01 0 -2.21 0.01 0

13Mar13 Prism Run. δ18O vs. port number. CM12 shows a monotonic drift towards lower values. When corrected for drift the standard deviation is 0.05 permil.

13Mar13 Prism Run. CM12 standard δ13C vs. δ18O.