Dual-Inlet O2 Isotope Analysis
Introduction
Safety
Quick Start
- make sure previous run is finished
- before removing manifold, close all octopus / squid valves and valves 11, 13, 40. but also make sure valves 14, 16, 26, 24 are closed
- close manual valve on manifold
- remove manifold
- attach next manifold (MAKE SURE MANIFOLDS NEVER ARE INVERTED)
- open valves 11, 13, and 39 and make sure vacuum reaches X e-3
- open manual valve on new manifold after vacuum is low
- copy "ColdFingerPressures.csv" (c:\lorax\coldfingerpressures.csv) to server (s:\data\projects\water_17O_irms\coldfingerpressures\)
- rename on server so that it has the same prefix name as dual-inlet results file (desktop shortcut to dual-inlet results)
- rename the dual-inlet results file to remove the (17O_Water) and then copy to server (s:\data\projects\water_17O_irms\raw\)
- close previous run window
- enter new sample id info into Identifier1 column
- daily log
- backgrounds for column AD (cup 1) 28.0 mV, in lower left corner of window, select N2_c3_low, then after the instrument changes, read signal from 28.0
- switch back to O2_high when done
- click start in acquisition, then change water name accordingly
- click ok
Exhaustive Protocol
Last updated: 2020-08-28 12:16:10