A Method for Rapid and Precise Triple Oxygen Isotope Measurements via High-Temperature Conversion to CO Followed by Nickel-Catalyzed CO to CO<sub>2</sub> Conversion and Laser Spectroscopy

A Method for Rapid and Precise Triple Oxygen Isotope Measurements via High-Temperature Conversion to CO Followed by Nickel-Catalyzed CO to CO<sub>2</sub> Conversion and Laser Spectroscopy

Triple oxygen isotopic compositions (<sup>16</sup>O, <sup>17</sup>O, <sup>18</sup>O) have conventionally been measured via isotope ratio mass spectrometry using O<sub>2</sub> as an analyte. Conversion of sample oxygen to O<sub>2</sub> typic...

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Bibliographic Details
Main Author:	Nicholas M. Ellis (6322211) (author)
Other Authors:	Kian R. Kafaie (22769992) (author), Rick Wehr (20911536) (author), David D. Nelson (1778890) (author), Scott C. Herndon (1296876) (author), Wenbo Yang (1558471) (author), Todd E. Dawson (6893444) (author), Daniel A. Stolper (7915874) (author)
Published:	2025
Subjects:	Biochemistry Molecular Biology Physiology Pharmacology Ecology Immunology Inorganic Chemistry Computational Biology Space Science Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified excess elemental carbon acid digestion ), 350 ° c 1450 ° c 12 per meg triple oxygen isotope δ ′< sup 18 </ sup 17 </ sup 16 </ sup geochemically important materials 2 </ sub quantitative oxygen conversion sample oxygen pyrolytic materials wider range viable alternative two steps temperature conversion procedural replicates oxide minerals organic molecules measurements due laser spectroscopy laser spectrometers either h currently available conversion process catalytically converted catalytic equilibration 30 min
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