{"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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0008234167,0.0008088235,0.0005453666,0.001199607,0.0003650076,0.0003267038,0.0006777582,0.0005776919,0.001563437],"category_scores_gemma":[0.0007569802,0.0002314978,0.0003027196,0.001200023,0.0003793408,0.0004076413,0.0004214811,0.0003936962,0.0006852748],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005825917,"about_ca_system_score_gemma":0.0006964391,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001022092,"about_ca_topic_score_gemma":0.001255446,"domain_scores_codex":[0.9990094,0.0002046943,0.00004813592,0.0001839896,0.0004632522,0.00009053261],"domain_scores_gemma":[0.999589,0.0000881236,0.0000743757,0.00003191229,0.0001727466,0.00004383855],"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":[0.0005157177,0.00005402777,0.002143875,0.000404859,0.00003889422,0.0001308659,0.00004824039,0.0002243523,0.9757031,0.0003814907,0.0001979079,0.02015674],"study_design_scores_gemma":[0.00007020721,0.000883862,0.01361878,0.00003830147,0.00007294216,0.001047964,0.00009455364,0.002775257,0.9698203,0.0003077658,0.01122572,0.0000444465],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7103961,0.05213251,0.2220028,0.0005091184,0.0004446659,0.0006951469,0.002932195,0.001687235,0.0092002],"genre_scores_gemma":[0.8120118,0.01405184,0.1626641,0.0004707801,0.000138423,0.0006832657,0.002166745,0.0001335097,0.007679479],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001563437,"threshold_uncertainty_score":0.005230188,"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."}}