{"id":"W4389398529","doi":"10.1080/00397911.2023.2288913","title":"A simple and convenient synthesis of labeled 9-hydroxy[ <sup>13</sup> C <sub>6</sub> ]phenanthrene as internal standard for mass spectrometry quantification of a key phenanthrene metabolite in human urines","year":2023,"lang":"en","type":"article","venue":"Synthetic Communications","topic":"Radical Photochemical Reactions","field":"Chemistry","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"Institut National de Santé Publique du Québec; Université Laval","funders":"Institut National de Santé Publique du Québec","keywords":"Chemistry; Phenanthrene; Mass spectrometry; Phenanthrenes; Organic chemistry; Chromatography","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":[0.0004553254,0.0007112727,0.0003201267,0.0004390807,0.0003214494,0.0001842993,0.0004459222,0.0004468673,0.001364978],"category_scores_gemma":[0.0004076269,0.0002199922,0.0003080965,0.0003712458,0.0003437554,0.000249975,0.0003821881,0.000574908,0.0009268855],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002358698,"about_ca_system_score_gemma":0.0004863427,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0003051519,"about_ca_topic_score_gemma":0.0009637121,"domain_scores_codex":[0.9996116,0.00007123029,0.00001988047,0.0001204822,0.000124868,0.00005201265],"domain_scores_gemma":[0.9997591,0.00003663331,0.00005205571,0.00006008983,0.00004718727,0.00004482893],"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":[0.00004555866,0.00001598206,0.0001004145,0.00005732003,0.000008159614,0.00007755326,0.00002060776,0.0001167903,0.9936361,0.0002826834,0.00006691754,0.00557179],"study_design_scores_gemma":[0.00000652488,0.0002066443,0.0005361934,0.000004987141,0.00001142415,0.0003090683,0.000008884141,0.0002159219,0.9934868,0.0001012934,0.005104082,0.000008286997],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"methods","genre_scores_codex":[0.4911813,0.006783332,0.4856017,0.0003313803,0.0002993212,0.001025738,0.002257677,0.001464128,0.01105535],"genre_scores_gemma":[0.6982271,0.003654377,0.287877,0.0001621141,0.00007832982,0.0005853385,0.001526043,0.000188394,0.007701368],"genre_candidate":"methods","genre_consensus":null,"teacher_disagreement_score":0.001364978,"threshold_uncertainty_score":0.004566312,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02117319119396516,"score_gpt":0.2967256461249509,"score_spread":0.2755524549309858,"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."}}