{"id":"W2076019898","doi":"10.1021/ed084p310","title":"An Undergraduate Experiment for the Measurement of Perfluorinated Surfactants in Fish Liver by Liquid Chromatography–Tandem Mass Spectrometry","year":2007,"lang":"en","type":"article","venue":"Journal of Chemical Education","topic":"Various Chemistry Research Topics","field":"Chemistry","cited_by":19,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"","keywords":"Chemistry; Chromatography; Liquid chromatography–mass spectrometry; Perfluorooctane; Fish <Actinopterygii>; Sample preparation; Mass spectrometry; Extraction (chemistry); Tandem mass spectrometry; Contamination; Environmental chemistry; Sulfonate; 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":[0.001620122,0.0005946375,0.0005373529,0.0002378946,0.001078428,0.0004001029,0.0007546573,0.0008509041,0.003244517],"category_scores_gemma":[0.001181765,0.0002939258,0.000422559,0.0002089458,0.0004166458,0.000495364,0.001023645,0.001151131,0.0009829613],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007355115,"about_ca_system_score_gemma":0.0009713642,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001047416,"about_ca_topic_score_gemma":0.002624345,"domain_scores_codex":[0.9989852,0.0001626456,0.0000712423,0.00032252,0.0003220129,0.0001363824],"domain_scores_gemma":[0.9982602,0.0002296264,0.0001474985,0.0002619956,0.0004431882,0.0006575654],"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":[0.003368296,0.01584382,0.01297741,0.0001106527,0.00006071611,0.0001710798,0.0004368172,0.0003260052,0.9252931,0.0006081135,0.002056731,0.03874721],"study_design_scores_gemma":[0.001204276,0.08503135,0.04294989,0.00002926934,0.0001385786,0.0005899128,0.0003172414,0.004462869,0.8422487,0.0005551238,0.02235969,0.0001131278],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9752054,0.00004721801,0.01878941,0.0004238565,0.0001008678,0.002098264,0.0006975758,0.0003538797,0.002283399],"genre_scores_gemma":[0.8079564,0.0002168847,0.1558608,0.001473319,0.00007895772,0.005042143,0.003630324,0.0001819647,0.02555923],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.003244517,"threshold_uncertainty_score":0.01085401,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02428991847636496,"score_gpt":0.3140871842050506,"score_spread":0.2897972657286856,"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."}}