An International Study Evaluating Elemental Analysis

Jason Dutton; Rupert Kuveke; Lachlan Barwise; Yara van Ingen; Nicholas Roberts; Kanika Vashisth; Saurabh Chitnis; Caleb Martin; Rebecca Melen

doi:10.26434/chemrxiv-2022-k5xvx

Analytical Chemistry

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An International Study Evaluating Elemental Analysis

Working Paper

Jason Dutton La Trobe University ,
Rupert Kuveke La Trobe University ,
Lachlan Barwise La Trobe University ,
Yara van Ingen Cardiff University ,
Nicholas Roberts Dalhousie University ,
Kanika Vashisth Baylor University ,
Saurabh Chitnis Dalhousie University ,
Caleb Martin Baylor University ,
Rebecca Melen Cardiff University

Abstract

A statistical study on C, H, N elemental analysis for 5 small organic compounds at 18 independent service providers across multiple countries demonstrates variation in the returned results that is outside journal guidelines (0.4%) in greater than 10% of measurements for C and N while H analyses return a high proportion of results within guidelines. The results clearly indicate that a deviation of 0.4% is not a realistic journal requirement for synthetic samples with the variability attributed to random error in the data collection process.