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Record W1488460200 · doi:10.1002/9780470027318.a0530

Phospholipids of Plasma Lipoproteins, Red Blood Cells and Atheroma, Analysis of

2000· other· en· W1488460200 on OpenAlexaff
Amir Ravandi, A. Kuksis

Bibliographic record

VenueEncyclopedia of Analytical Chemistry · 2000
Typeother
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicMetabolomics and Mass Spectrometry Studies
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsChemistryChromatographyMass spectrometryElectrospray ionizationLipidomicsDerivatizationLiquid chromatography–mass spectrometryLipidomeSample preparationTandem mass spectrometryBiochemistry

Abstract

fetched live from OpenAlex

Abstract The large number of lipid classes and great complexity of molecular species present in blood plasma, red cells, platelets and atheromatous lesions requires a combination of analytical techniques for comprehensive analyses, including chemical and enzymatic derivatization of samples. In many instances only partial analyses are required, which can be accomplished by specific analytical techniques. This chapter describes the full spectrum of the methodology ranging from the most basic thin‐layer chromatography (TLC) to the detailed mass spectrometric assays. Traditional sample extraction by liquid–liquid partition is time‐consuming and involves large volumes of solvents. Liquid–solid extraction using adsorbent cartridges is more economical. At the present time total lipid extracts can be effectively assayed for lipid class content and molecular species composition by flow injection tandem mass spectrometry (MS/MS), while a more detailed analysis of complex lipid mixtures is provided by a combination of liquid chromatography with on‐line electrospray mass spectrometry (LC/ESMS). The new techniques permit completion of the analyses in a few hours, where previously several days or weeks may have been required. The soft ionization mass spectrometric techniques have permitted the recognition and detailed analysis of such minor components of blood as the lipid oxidation and glycation products often observed in disease.

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), 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: Other · Consensus signal: Other
Teacher disagreement score0.278
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.000
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 designBench or experimental
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

Citations0
Published2000
Admission routes1
Has abstractyes

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