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Record W1571555125 · doi:10.1002/3527600434.eap682

Ultraviolet and Visible Absorption Spectrometers

2009· other· en· W1571555125 on OpenAlexaff
Robert H Lipson

Bibliographic record

Venuedigital Encyclopedia of Applied Physics · 2009
Typeother
Languageen
FieldChemistry
TopicSpectroscopy and Laser Applications
Canadian institutionsWestern University
Fundersnot available
KeywordsSpectroscopyUltraviolet visible spectroscopyFluorescence spectroscopySpectrometerAbsorption spectroscopyChemistryTime-resolved spectroscopyChemometricsInstrumental chemistryUltravioletAbsorption (acoustics)Analytical Chemistry (journal)FluorescencePhotochemistryOpticsMaterials scienceOptoelectronicsPhysics

Abstract

fetched live from OpenAlex

Abstract An overview of spectroscopy fundamentals for atoms and molecules is provided as they pertain to the ultraviolet (UV) and visible spectral regions. Topics include state labels, electronic selection rules, the Born–Oppenheimer approximation, and the Franck–Condon principle. The Beer–Lambert law, chemometrics, derivative spectroscopy, and circular dichroism spectroscopy are explained as are the origins of UV/visible transitions in organic and inorganic compounds as well as solids. Relevant experimental methods and instrumentation such as light sources, monochromators, and detectors, which can be used to record UV/visible absorption spectra, are described. A brief discussion on laser‐based techniques, including fluorescence excitation spectroscopy, excitation spectroscopy with mass detection, and cavity ring‐down spectroscopy, is also given.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
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 score0.518
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

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

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 head0.004
GPT teacher head0.212
Teacher spread0.208 · 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 designNot applicable
Domainnot available
GenreOther

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
Published2009
Admission routes1
Has abstractyes

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