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Record W4399978772 · doi:10.1002/9780470027318.a9820

Non‐Targeted Analysis of Plastic Additives

2024· other· en· W4399978772 on OpenAlex
Roxana Sühring, Eric Fries

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueEncyclopedia of Analytical Chemistry · 2024
Typeother
Languageen
FieldEnvironmental Science
TopicMicroplastics and Plastic Pollution
Canadian institutionsToronto Metropolitan University
Fundersnot available
KeywordsChemistry

Abstract

fetched live from OpenAlex

Abstract This article presents an examination of non‐targeted analysis and suspect‐screening approaches in the identification and measurement of plastic additives and related contaminants. Four distinct case studies are highlighted, each demonstrating the utility of these techniques in various environmental contexts. The first study utilizes non‐targeted analysis for rapid fingerprinting of microplastics, illuminating sources of plastic pollution. The second investigation emphasizes the role of particle size in the leaching of plastic additives used in tires, with non‐targeted analysis revealing differences in chemical profiles based on particle size. The third case study introduces the novel technique of ‘smart suspect screening’, combining non‐targeted analysis and suspect screening to identify environmentally relevant compounds and their transformation products in the environment. The final study demonstrates the power of suspect screening in characterizing persistent, mobile, and toxic (PMT) plastic additives. Together, these case studies underscore the value of non‐targeted analysis and suspect screening in addressing plastic pollution as a complex chemical mixture problem, advancing our understanding of emerging contaminant threats from plastics. Rigorous data filtering, quality assurance, and reporting standards are emphasized to ensure the credibility and utility of the obtained results.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.094
Threshold uncertainty score0.955

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0950.001

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 head0.004
GPT teacher head0.213
Teacher spread0.209 · 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