{"id":"W2073052457","doi":"10.1039/b603668f","title":"Determination of the origin of urinary norandrosterone traces by gas chromatography combustion isotope ratio mass spectrometry","year":2006,"lang":"en","type":"article","venue":"The Analyst","topic":"Mass Spectrometry Techniques and Applications","field":"Chemistry","cited_by":59,"is_retracted":false,"has_abstract":true,"ca_institutions":"Institut National de la Recherche Scientifique","funders":"World Anti-Doping Agency","keywords":"Mass spectrometry; Chemistry; Isotope-ratio mass spectrometry; Chromatography; Gas chromatography; Isotope; Combustion; Accelerator mass spectrometry; Gas chromatography–mass spectrometry; Radiochemistry; Environmental chemistry; Organic chemistry; Nuclear physics","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":[0.001006981,0.000900056,0.0006999986,0.002849503,0.000717487,0.0008061178,0.0009036973,0.0009064095,0.001478443],"category_scores_gemma":[0.002082152,0.0003760179,0.0005533034,0.001851006,0.0007117806,0.0003924884,0.0004648797,0.0007975982,0.0008320494],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0006501498,"about_ca_system_score_gemma":0.001686213,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005933167,"about_ca_topic_score_gemma":0.008664645,"domain_scores_codex":[0.9979343,0.0002230478,0.0000792241,0.0005083007,0.001084631,0.0001705662],"domain_scores_gemma":[0.9992005,0.00015367,0.00008520311,0.00007510863,0.000421893,0.00006365116],"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":[0.0008501975,0.0002042835,0.04884667,0.0005134339,0.0003123697,0.000490401,0.000347714,0.0006499704,0.8858295,0.001436892,0.0008744673,0.05964408],"study_design_scores_gemma":[0.00003286081,0.0004170273,0.0835486,0.0001814317,0.0001802218,0.001181445,0.0002236258,0.006716559,0.8885115,0.0009831281,0.01793737,0.00008614145],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7674891,0.02652599,0.1722011,0.000351989,0.000419181,0.000941925,0.01203782,0.002055229,0.01797756],"genre_scores_gemma":[0.8700265,0.009208817,0.1059004,0.0007547168,0.0001341357,0.0008605683,0.004636505,0.0003991867,0.008079131],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.005933167,"threshold_uncertainty_score":0.01179725,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007651010316159283,"score_gpt":0.2378829618758881,"score_spread":0.2302319515597288,"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."}}