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Record W1988141357 · doi:10.2116/bunsekikagaku.51.539

Determination of rare-earth elements in environmental water using chelating resin disk separation/ICP-MS.

2002· article· en· W1988141357 on OpenAlexaboutno aff
Yuichi Takaku, Yuka Kudo, Jyoji Kimura, Takuma Hayashi, Ikuko Ota, Hidenao Hasegawa, Shinji Ueda

Bibliographic record

VenueBUNSEKI KAGAKU · 2002
Typearticle
Languageen
FieldChemistry
TopicAnalytical chemistry methods development
Canadian institutionsnot available
Fundersnot available
KeywordsRare earthInductively coupled plasma mass spectrometryChelating resinEnvironmental chemistryChemistryChelationEnvironmental scienceAnalytical Chemistry (journal)Nuclear chemistryMineralogyChromatographyMass spectrometryInorganic chemistryMetal

Abstract

fetched live from OpenAlex

イミノ二酢酸キレート樹脂ディスクを用いた環境水中の希土類元素の予備濃縮法の開発を行い, ICP-MSを用いて, 環境水試料中の希土類元素の定量を試みた. 試料をpH3に調整することにより, 本樹脂ディスクを用いて希土類元素及びTh, Uの濃縮と海水試料の主成分であるアルカリ, アルカリ土類元素の除去が迅速に行える. アルカリ土類金属全般を除去することができ, 試料中のBaもCaと同時に分離されることから, ICP-MSの測定の際にBaOの妨害の影響を受けるユーロピウムについても定量が可能である. 本法を用い, 四つの環境標準試料 {河川水標準物質, JAC 0031 (日本分析化学会), SLRS-3 (NRC Canada), 海水標準試料CASS-3, NASS-4 (NRC Canada)} 及び, 青森県内の五つの環境試料 (海水1, 汽水3, 淡水1) 中の希土類元素を測定した.

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 categoriesInsufficient 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 score0.048
Threshold uncertainty score0.996

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)0.0050.000

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 head0.034
GPT teacher head0.294
Teacher spread0.260 · 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

Citations20
Published2002
Admission routes1
Has abstractyes

Explore more

Same venueBUNSEKI KAGAKUSame topicAnalytical chemistry methods developmentFrench-language works237,207