MétaCan
Menu
Back to cohort
Record W1972418704 · doi:10.1081/jlc-120030179

Determination of Thujone by Derivatization with Dansylhydrazine and Liquid Chromatography

2004· article· en· W1972418704 on OpenAlex
Peter Scott, G. A. Lawrence, Ben Lau

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

VenueJournal of Liquid Chromatography & Related Technologies · 2004
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicPlant biochemistry and biosynthesis
Canadian institutionsHealth Canada
Fundersnot available
KeywordsChemistryChromatographyDerivatizationMass spectrometrySolid phase extractionLiquid chromatography–mass spectrometryTandem mass spectrometryHigh-performance liquid chromatographyExtraction (chemistry)

Abstract

fetched live from OpenAlex

Abstract The reaction of α‐ and β‐thujones with dansylhydrazine (DNSH) was studied using reversed phase liquid chromatography (LC) with fluorescence detection. The derivatization procedure, although slow, was applied for determination of α‐thujone in white vermouth at concentrations 0.45–4.5 µg/L using a C18 solid phase extraction column for cleanup; recoveries of added α‐thujone were in the range 60–77%. Separation of dansyl α‐ and β‐thujones was achieved by LC and their identity confirmed by LC‐tandem mass spectrometry (MS/MS). Keywords: Liquid chromatographyDansylhydrazineThujoneVermouth

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 categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.005
Threshold uncertainty score0.789

Codex and Gemma teacher scores by category

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

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 head0.003
GPT teacher head0.194
Teacher spread0.191 · 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