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Record W4415430814 · doi:10.1039/d5ja00130g

Precision and accuracy of highly-enriched double-spike Fe taggant measurements using quadrupole- and multicollector-ICP-MS

2025· article· en· W4415430814 on OpenAlexaff
Shelby Bowden, Lorianne R. Shultz, Matthew O. Harrell, Michael G. Bronikowski, C. Fitzgerald, Christopher A. Barrett, Matthew S. Wellons, Kyle M. Samperton, Katherine Koh, Gage Green

Bibliographic record

VenueJournal of Analytical Atomic Spectrometry · 2025
Typearticle
Languageen
FieldEngineering
TopicIon-surface interactions and analysis
Canadian institutionsIONICS Mass Spectrometry (Canada)
FundersLaboratory Directed Research and DevelopmentOffice of Defense Nuclear Nonproliferation
KeywordsAccuracy and precisionAnalytical Chemistry (journal)IsotopeAnalytical technique

Abstract

fetched live from OpenAlex

Q-ICP-MS is capable of resolving highly diluted isotopic taggants. This underscores the potential of modern Q-ICP-MS platforms in being able to quantify subtle isotopic differences in challenging material formulations.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.005
metaresearch head score (Gemma)0.009
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.006
Threshold uncertainty score0.026

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0050.009
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0020.001
Open science0.0020.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.025
GPT teacher head0.298
Teacher spread0.274 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreMethods

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations2
Published2025
Admission routes1
Has abstractyes

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