{"id":"W2007438402","doi":"10.1021/ac050548u","title":"Comparative Analysis of Cellulose Preparation Techniques for Use with<sup>13</sup>C,<sup>14</sup>C, and<sup>18</sup>O Isotopic Measurements","year":2005,"lang":"en","type":"article","venue":"Analytical Chemistry","topic":"Geology and Paleoclimatology Research","field":"Earth and Planetary Sciences","cited_by":182,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Alberta","funders":"","keywords":"Chemistry; Cellulose; Isotope; Stable isotope ratio; Carbon-13; Residue (chemistry); Isotopes of carbon; δ13C; Wax; Isotope analysis; Lignin; δ18O; Analytical Chemistry (journal); Chromatography; Radiochemistry; Environmental chemistry; Organic chemistry; Total organic carbon","routes":{"ca_aff":true,"ca_fund":false,"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","insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.000629665,0.0003416298,0.0008447033,0.0001981319,0.0002158961,0.00007254015,0.0003455286,0.0004090643,0.002419134],"category_scores_gemma":[0.0001955975,0.0002821551,0.0002202335,0.0006922739,0.0006680341,0.0003316702,0.00003883901,0.0004009258,0.00004611973],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001144773,"about_ca_system_score_gemma":0.0001159288,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001790981,"about_ca_topic_score_gemma":0.0004247274,"domain_scores_codex":[0.9974236,0.0001599464,0.0005894037,0.0007076686,0.0005023523,0.0006169671],"domain_scores_gemma":[0.998043,0.0006934145,0.0001616091,0.0004724163,0.0003368284,0.0002927153],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0004745808,0.0001304752,0.9686958,0.0001202328,0.001043273,0.000009136346,0.000549613,0.02766841,0.00007244269,0.00002187958,0.0009210858,0.0002931056],"study_design_scores_gemma":[0.000879654,0.0003437802,0.04457599,0.00004573552,0.0013666,0.0000304875,0.0003981231,0.9358582,0.01390622,0.0001347072,0.002005888,0.000454558],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9896092,0.0002678766,0.0005627017,0.0003204032,0.000004290045,0.0004521619,0.00012394,0.00006001821,0.00859934],"genre_scores_gemma":[0.9947087,0.00004232608,0.002401351,0.0001278299,0.00008331397,0.00002524421,0.0006777233,0.00000639577,0.001927092],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.9241198,"threshold_uncertainty_score":0.999963,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.05621051859732446,"score_gpt":0.3085572095324226,"score_spread":0.2523466909350982,"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."}}