{"id":"W4406216816","doi":"10.1002/rcm.9958","title":"Guidelines for Accurate and Precise Stable Isotope Analysis of Calcite, Dolomite, and Magnesite Using a Carbonate Device for Continuous Flow‐Isotope Ratio Mass Spectrometry (CF‐IRMS)","year":2025,"lang":"en","type":"article","venue":"Rapid Communications in Mass Spectrometry","topic":"Paleontology and Stratigraphy of Fossils","field":"Earth and Planetary Sciences","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"McMaster University","funders":"Ontario Ministry of Research and Innovation; Natural Sciences and Engineering Research Council of Canada","keywords":"Dolomite; Magnesite; Calcite; Chemistry; Carbonate; Mineralogy; Grain size; Phosphoric acid; Carbonate minerals; Stable isotope ratio; Analytical Chemistry (journal); Geology; Chromatography; Magnesium","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.007616116,0.002515994,0.0009743919,0.004677378,0.001208321,0.001108093,0.002983748,0.003247391,0.007783578],"category_scores_gemma":[0.007252945,0.001948344,0.0009449049,0.001334153,0.001208388,0.001222009,0.001404214,0.001860113,0.01300591],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004917387,"about_ca_system_score_gemma":0.001473041,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001361973,"about_ca_topic_score_gemma":0.004496021,"domain_scores_codex":[0.992914,0.002044878,0.001130993,0.000752905,0.002849929,0.000307285],"domain_scores_gemma":[0.9941728,0.001177059,0.0005256916,0.001142702,0.002753143,0.0002286971],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"not_applicable","study_design_scores_codex":[0.0001861195,0.0001093004,0.001386491,0.00088554,0.00002851414,0.0003482802,0.0001864359,0.0004145126,0.9477568,0.001507965,0.01069893,0.03649123],"study_design_scores_gemma":[0.0001257409,0.0004584651,0.009239078,0.0006193422,0.00008747741,0.002319735,0.0002612913,0.005330034,0.7623357,0.002615633,0.2164317,0.0001757843],"study_design_candidate":"not_applicable","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"methods","genre_scores_codex":[0.03317191,0.004680146,0.9254226,0.0008494717,0.000606917,0.004522907,0.007868225,0.009501659,0.01337628],"genre_scores_gemma":[0.02652528,0.002010689,0.9507417,0.0005453982,0.0001150248,0.006296349,0.005820908,0.001223361,0.006721308],"genre_candidate":"methods","genre_consensus":"methods","teacher_disagreement_score":0.007783578,"threshold_uncertainty_score":0.04027838,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.05895014433826338,"score_gpt":0.3345059685239191,"score_spread":0.2755558241856557,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}