Keyphrases
Ice Core
100%
Automated Configuration
100%
13C-CH4
100%
Post-combustion
42%
Isotope Ratio
28%
GC Column
28%
GC-C
28%
Gas Chromatography-combustion-isotope Ratio Mass Spectrometry (GC-C-IRMS)
28%
Source Reconstruction
14%
Gas Chromatography
14%
Resolving Power
14%
Air Sampling
14%
Published Data
14%
Combustion
14%
Oxygen Supply
14%
Mass Spectrometer
14%
Helium
14%
Isotope Measurements
14%
Multiple Isotopes
14%
Analytical Systems
14%
VSMOW
14%
Air Bubbles
14%
Reference Gas
14%
CH4 Sink
14%
Ion Source
14%
Carrier Gas Flow
14%
Gold Catalyst
14%
N2O Sink
14%
Bubble-free
14%
N2O Source
14%
Gas Dissolution
14%
Flow Transport
14%
Isotopic Variability
14%
Sampling Measurement
14%
N2O Isotopes
14%
Stable Conditions
14%
Earth and Planetary Sciences
Nitrous Oxide
100%
Methane
100%
Ice Core
100%
Isotope Ratios
12%
Carbon Dioxide
12%
Gas Chromatography
6%
Air Bubble
6%
Gas Flow
6%
Spectrometer
6%
Physics
Methane
100%
Nitrous Oxide
100%
Ice Core
100%
Carbon Dioxide
12%
Ion Source
6%
Gas Flow
6%
Mass Spectrometer
6%
Air Bubble
6%
Engineering
Core Samples
100%
Methane
100%
Good Agreement
7%
Mass Spectrometer
7%
Gas Chromatography
7%
Gas Flow
7%
Carrier Gas
7%
Reference Gas
7%
Sample Gas
7%
Ion Source
7%