Fluorination of Silver Phosphate in Nickel Reaction Vessels for Triple Oxygen Isotope Analysis.

ABSTRACT:

Rationale

Increasingly, more laboratories are measuring the triple oxygen isotope values of phosphate. Standardization is key to having good interlaboratory results. Here, we present the triple oxygen isotope values of a suite of standards using fluorination and compare them with previously reported triple oxygen isotope values.

Methods

Silver phosphate (~2-3 mg) was fluorinated in nickel reaction vessels, and the resulting O₂ was analyzed on a Thermo MAT 253 for the paired δ¹⁷O-δ¹⁸O value (Δ'¹⁷O). Although the δ¹⁸O and δ¹⁷O values were variable, the fluorination reaction progresses along a slope of ~0.528, indicating that the Δ'¹⁷O is constant when calculated using a λ_ref = 0.528. The

SUBMITTER: Wostbrock JAG 

PROVIDER: S-EPMC12805635 | biostudies-literature | 2026 Apr

REPOSITORIES: biostudies-literature