{"id":"W3048944060","doi":"10.1021/acsearthspacechem.0c00143","title":"Oxygen Isotope Analysis of Saline Solutions by a Carbonic anhydrase-Catalyzed CO<sub>2</sub>–H<sub>2</sub>O Equilibration Method (C<sup>3</sup>HEM) with an Improved Drying Technique","year":2020,"lang":"en","type":"article","venue":"ACS Earth and Space Chemistry","topic":"Groundwater and Isotope Geochemistry","field":"Earth and Planetary Sciences","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"McMaster University","funders":"Natural Sciences and Engineering Research Council of Canada; Ontario Ministry of Research, Innovation and Science; Canada Foundation for Innovation","keywords":"Chemistry; Carbonic anhydrase; Oxygen; Isotopes of oxygen; Aqueous solution; Stable isotope ratio; Oxygen-18; Catalysis; Inorganic chemistry; Kinetic isotope effect; Carbonic acid; Radiochemistry; Analytical Chemistry (journal); Nuclear chemistry; Deuterium; Chromatography; Physical chemistry; Enzyme; Biochemistry; Organic chemistry","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":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.0004142538,0.0004584636,0.0006938174,0.00009123445,0.0002695332,0.0001697474,0.0003442603,0.0003216613,0.0001079192],"category_scores_gemma":[0.00009975245,0.0004165447,0.0001691948,0.001021488,0.0002204224,0.000492635,0.00006128122,0.0004302575,0.000006880461],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001089237,"about_ca_system_score_gemma":0.0001998823,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000544157,"about_ca_topic_score_gemma":0.0003942899,"domain_scores_codex":[0.9974625,0.00009832493,0.0005009507,0.0008822416,0.000384484,0.0006714993],"domain_scores_gemma":[0.9982902,0.0001146101,0.0003308914,0.0005439041,0.0001277724,0.0005925765],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0002043724,0.00004623302,0.01400791,0.0001821654,0.0003208754,0.00001121337,0.0003997886,0.001541791,0.9813591,7.67169e-7,0.0001199444,0.001805862],"study_design_scores_gemma":[0.0006394454,0.0001549373,0.002060625,0.00003004177,0.0004637633,0.0000235408,0.0004202673,0.08039624,0.9151862,0.00001759939,0.0001234939,0.0004838417],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9926134,0.0005728941,0.004868627,0.0004259194,0.00001096079,0.0003851111,0.0006329466,0.0001350405,0.0003550679],"genre_scores_gemma":[0.9936391,0.0001780857,0.001860314,0.000162875,0.0001070112,0.0000203657,0.003980143,0.00002173385,0.00003034064],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.07885446,"threshold_uncertainty_score":0.9998286,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01061650703136751,"score_gpt":0.2093493788142397,"score_spread":0.1987328717828722,"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."}}