MétaCan
Menu
Back to cohort
Record W2369325525

Fluorescence Enhancement of Tb(III)-p- Phthalic Acid-EthylenediamineSystem by Y(III) and Its Analysis Application

2002· article· en· W2369325525 on OpenAlexaff
Shu Xu

Bibliographic record

VenueJournal of Instrumental Analysis · 2002
Typearticle
Languageen
FieldChemistry
TopicAnalytical chemistry methods development
Canadian institutionsDiscovery Air (Canada)
Fundersnot available
KeywordsChemistryDetection limitPhthalic acidEthylenediamineFluorescenceAqueous solutionExcitation wavelengthAnalytical Chemistry (journal)Linear rangeNuclear chemistryWavelengthChromatographyInorganic chemistryPhysical chemistryOrganic chemistryOptics
DOInot available

Abstract

fetched live from OpenAlex

In the aqueous medium with pH 8.0 the fluorescence intensity(IF) of Tb(Ⅲ)-p _ phthalic acid (p _ PTA)-ethylenediamine(EDA) system increased 84 times by 8.0×10-4 mol/L of Y(Ⅲ). The maximum IF of the system with 1.0×10-8 mol/L Tb(Ⅲ) is obtained with the following conditions: 1.0×10-3 mol/L p _ PTA, 0.5 mL 1%(φ) EDA, a excitation wavelength 296 nm and emission wavelength 546 nm. It was found that the fluorescence intensity was linear with Tb(Ⅲ) concentration in the range of 2.0×10-9 ~2.0×10-7 mol/L. In view of the above a method for the determination of trace of Tb(Ⅲ) is proposed by fluorophotometric analysis with RSD of 0.80% and detection limit of 5.0×10-11 mol/L.

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 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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
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 score0.023
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.002
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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 head0.014
GPT teacher head0.255
Teacher spread0.241 · 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 teacher head, not a consensus.

Study designBench or experimental
Domainnot available
GenreEmpirical

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

Citations0
Published2002
Admission routes1
Has abstractyes

Explore more

Same venueJournal of Instrumental AnalysisSame topicAnalytical chemistry methods developmentFrench-language works237,207