{"id":"W2068943520","doi":"10.1016/j.chroma.2009.03.024","title":"Characteristics of bicyclic sesquiterpanes in crude oils and petroleum products","year":2009,"lang":"en","type":"article","venue":"Journal of Chromatography A","topic":"Petroleum Processing and Analysis","field":"Chemistry","cited_by":66,"is_retracted":false,"has_abstract":false,"ca_institutions":"Environment and Climate Change Canada","funders":"","keywords":"Chemistry; Distillation; Kerosene; Diesel fuel; Sterane; Gasoline; Petroleum; Fuel oil; Fraction (chemistry); Chromatography; Light crude oil; Petroleum product; Residual oil; Gas chromatography; Hydrocarbon; Boiling point; Hopanoids; Environmental chemistry; Organic chemistry; Source rock; Waste management; Geology","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.000137272,0.0004361419,0.0001406317,0.0008182239,0.0002139338,0.0001940466,0.0002063351,0.0003190402,0.002412227],"category_scores_gemma":[0.000494521,0.0001812302,0.000165245,0.0004682522,0.0003004662,0.0003299381,0.0002156673,0.0003328279,0.0004319383],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001377447,"about_ca_system_score_gemma":0.0001732986,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00160956,"about_ca_topic_score_gemma":0.001477248,"domain_scores_codex":[0.9999051,0.00001621551,0.000006364647,0.00001895799,0.00002506365,0.00002838256],"domain_scores_gemma":[0.9995742,0.0001441274,0.00006770058,0.00001926486,0.00009604928,0.00009868637],"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":[0.00196259,0.00003960099,0.004554595,0.00008894272,0.00003920747,0.0005916294,0.0001859228,0.00020135,0.9861922,0.0003028074,0.00006801308,0.005773066],"study_design_scores_gemma":[0.0000416967,0.001147239,0.07910771,0.00002805194,0.00007742819,0.001490539,0.0004113304,0.00171373,0.9126231,0.0004289991,0.002880462,0.00004966872],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9953417,0.001106042,0.0009487887,0.00004199447,0.00001735737,0.00001180532,0.0005158644,0.00001446465,0.002002076],"genre_scores_gemma":[0.9960442,0.000493948,0.0004858487,0.0000345065,0.0000154638,0.0000110855,0.0007492205,0.000008378157,0.002157338],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002412227,"threshold_uncertainty_score":0.008069694,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006892793952091976,"score_gpt":0.2308942388256722,"score_spread":0.2240014448735802,"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."}}