Oxygen isotopic fractionation of O2 during adsorption and desorptionprocesses using molecular sieve at low temperatures
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- Oxygen isotopic fractionation of O2 during adsorption and desorptionprocesses using molecular sieve at low temperatures
- Ahn, Insu
Lee, Jong Ik
- Biochemistry & Molecular Biology; Chemistry; Spectroscopy
- Isotope fractionation; Molecular sieve; Oxygen isotope
- Issue Date
- Ahn, Insu, Minoru Kusakabe, and Jong Ik Lee. 2014. Oxygen isotopic fractionation of O2 during adsorption and desorptionprocesses using molecular sieve at low temperatures. Rapid Communications in Mass Spectrometry. 28: 1321-1328.
- Cryogenic trapping using molecular sieves is commonly used to collect O2 extracted from silicates for 17O/16O and 18O/16O analyses. However, gases which interfere with 17O/16O analysis, notably NF3, are also trapped and their removal is essential for accurate direct measurement of the 17O/16O ratio. It is also necessary to identify and quantify any isotopic fractionation associated with the use of cryogenic trapping using molecular sieves.
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