13CO2 Calibration gases
Extensive use of 13C Breath test analyses in clinical diagnostic applications has created a need for certified reference standards. This set of standards is designed to mimic 13CO2 levels in normal breath (Baseline Calibrant) and in two enriched samples (Mid-Level and High-Level Calibrants) Each Cylinder is filled with 10Litres of Air containing 5% of CO2. These gas calibration standards are gravimetrically prepared. Differences in 13C enrichment (expressed in delta units) between samples were determined in a multi-center interlaboratory study based on Isotope Ratio Mass Spectrometry (IRMS) analyses.
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Catalog |
Compound |
Amount |
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CLM-3781 |
Baseline : Average Delta 13C vs.PDB from interlaboratory study
5% CO2 in Air - Baseline Calibrant Gas
with Delta value = -22.8 vs. PDB |
10L
50L |
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|
CLM-3782 |
Mid-Level : 9.58 Delta units greater than Baseline
5% CO2 in Air - Mid Level Calibrant Gas
with Delta value = -13.22 vs. PDB |
10L
50L |
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|
CLM-3783 |
High-Level : 15.5 Delta units greater than Baseline
5% CO2 in Air - High Level Calibrant gas
with Delta value = - 7.3 vs. PDB |
10L
50L |
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Each 10L gas mixture is packaged in a standard 460ml carbon steel Lecture bottle with CGA 110/170 Brass valve.
Each 50L gas mixture is packaged in a standard�3L carbon steel cylinder with CGA 580 packless Brass angle valve.
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