{"id":"W2808216602","doi":"10.2298/jsc0006431v","title":"Mass spectrometry analysis of polychlorinated biphenyls: Chemical ionization and selected ion chemical ionization using methane as a reagent gas","year":2000,"lang":"en","type":"article","venue":"Journal of the Serbian Chemical Society","topic":"Mass Spectrometry Techniques and Applications","field":"Chemistry","cited_by":3,"is_retracted":false,"has_abstract":true,"ca_institutions":"Trent University","funders":"","keywords":"Electron ionization; Chemistry; Chemical ionization; Mass spectrometry; Mass spectrum; Fragmentation (computing); Ion; Analytical Chemistry (journal); Quadrupole mass analyzer; Direct electron ionization liquid chromatography–mass spectrometry interface; Ionization; Ion source; Polyatomic ion; Triple quadrupole mass spectrometer; Gas chromatography; Selected reaction monitoring; Chromatography; Tandem mass spectrometry; Organic chemistry","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":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0003085004,0.0002637937,0.0006174129,0.0001156519,0.0001022711,0.00003951844,0.0004113918,0.0003855338,0.002473336],"category_scores_gemma":[0.000196151,0.0002131612,0.0008797341,0.003642809,0.000178009,0.0001317701,0.00008931177,0.0006436079,0.00000107257],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004859521,"about_ca_system_score_gemma":0.0001041559,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00004083354,"about_ca_topic_score_gemma":3.444235e-7,"domain_scores_codex":[0.9977981,0.00004039482,0.0008797732,0.0003328532,0.0006230061,0.0003258138],"domain_scores_gemma":[0.9982572,0.000104212,0.0006674901,0.0003941793,0.0003795398,0.0001973625],"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":[0.00007707348,0.0002135063,0.002173429,0.0000682005,0.000983761,0.000001462223,0.0001288358,0.00006426753,0.9956368,0.0001876926,0.0001860747,0.0002788802],"study_design_scores_gemma":[0.0005078776,0.00002238084,0.0002365349,0.00008521999,0.001509007,0.00008406625,0.00009898965,0.01392487,0.9819912,0.001147813,0.0001756913,0.0002163611],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9973055,0.0002228554,0.001008681,0.0004966499,0.00002277259,0.0001049917,0.00002202985,0.00008702911,0.0007295408],"genre_scores_gemma":[0.9755889,0.0003701522,0.02351229,0.00007374736,0.0002293464,0.000004078313,0.0000496424,0.00003430222,0.0001375507],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02250361,"threshold_uncertainty_score":0.9984385,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01016728634283655,"score_gpt":0.2533242342962694,"score_spread":0.2431569479534329,"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."}}