التفاصيل البيبلوغرافية
| العنوان: |
A robust method for direct calibration of isotope ratios in gases against liquid/solid reference materials, including a laboratory comparison for δ13C-CH4. |
| المؤلفون: |
Sperlich, Peter, Moossen, Heiko, Geilmann, Heike, Bury, Sarah J., Brown, Julie C. S., Moss, Rowena C., Brailsford, Gordon W., Brand, Willi A. |
| المصدر: |
Rapid Communications in Mass Spectrometry: RCM; 1/15/2021, Vol. 35 Issue 1, p1-6, 6p |
| مصطلحات موضوعية: |
LIQUEFIED gases, REFERENCE sources, CALIBRATION, ISOTOPES |
| مستخلص: |
Our Gas/EA/IRMS technique might close this calibration gap, as it can be adapted to calibrate isotope ratios in non-CH 4 gases to available liquid/solid RMs. LETTER TO THE EDITOR Arobustmethodfordirectcalibrationofisotoperatiosin gasesagainstliquid/solidreferencematerials,includinga laboratorycomparisonfor 13 C-CH 4 Although stable carbon isotope ratios in atmospheric methane (CH 4) are frequently used to constrain biogeochemical processes responsible for the increase of this powerful greenhouse gas, 1-3 certified reference materials (RMs) for isotope ratios in CH 4 have been lacking for decades. Our Gas/EA/IRMS systems enable adherence to the PIT for the measurements of gaseous/liquid/solid samples, which is critical for the calibration of isotope ratios in gases against liquid/solid RMs with high accuracy. A robust method for direct calibration of isotope ratios in gases against liquid/solid reference materials, including a laboratory comparison for 13C-CH4. [Extracted from the article] |
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