Nu Instruments’ Panorama is again proving it is a ground breaking instrument by being featured on the front cover of a leading journal, International Journal of Mass Spectrometry. This prestigious journal has published a paper characterising the instrument and demonstrating its exceptional resolution and isotope ratio measurement capabilities.
The two isotopologues of methane at m/z = 18, 13CH3D and 12CH2D2 can only be adequately measured using true high resolution when interfering species are resolved. Mass resolving power of up to 80,000 is routinely reached, providing sizeable flat top peaks on resolved species only 1.5 mDa apart. Precisions achieved for the ratios 13CH3D/12CH4 and 12CH2D2/12CH4 are ≈0.1 ‰and ≈0.5‰ respectively.
Stable isotope measurements provide pieces of information that can give researchers clues to the conditions and processes that formed the sample they are interested in. The field of clumped isotopes is providing new information for researchers to use in their investigations.
The paper concludes that “The ability to measure both ∆13CH3D and ∆12CH2D2 (‰ variations relative to the stochastic reference frame) provides heretofore unmatched capabilities to identify kinetic reaction pathways, isotope fractionation during transport, mixing, as well as temperatures of formation for methane gas.”
This article was published in the International Journal of Mass Spectrometry, Volume 401,
Authors Edward D. Young (a), Douglas Rumble III (b), Philip Freedman (c), Mark Mills (c)
(a) Department of Earth, Planetary, and Space Sciences, University of California Los Angeles, CA 90095-1567, USA
(b) Geophysical Laboratory, 5251 Broad Branch Rd. NW, Washington, DC 20015-1305, USA
(c) Nu Instruments Limited, Unit 74 Clywedog Road South, Wrexham LL139XS,
Copyright Elsevier (2016).
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