{"id":"W4413876898","doi":"10.1021/acs.estlett.5c00678","title":"Trifluoroacetic Acid in Australian Human Urine Samples","year":2025,"lang":"en","type":"article","venue":"Environmental Science & Technology Letters","topic":"Per- and polyfluoroalkyl substances research","field":"Environmental Science","cited_by":11,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Guelph","funders":"University of Queensland; Queensland Health","keywords":"Trifluoroacetic acid; Urine; Chromatography; Chemistry; Biochemistry","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":["sts","insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0005243781,0.0002483673,0.0002298904,0.0007910689,0.0005146181,0.0000528474,0.001535945,0.0001472174,0.002391505],"category_scores_gemma":[0.00002889437,0.0002414266,0.00005582008,0.00254082,0.006121358,0.0004281939,0.0008142173,0.0005027495,0.0005604678],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001154817,"about_ca_system_score_gemma":0.00001884836,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0002686898,"about_ca_topic_score_gemma":0.0002428113,"domain_scores_codex":[0.9970974,0.00004615283,0.000328151,0.0008641829,0.0006066905,0.001057461],"domain_scores_gemma":[0.9991532,0.00001946989,0.00006056997,0.0006339283,0.000001125228,0.0001317188],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.000005490826,0.00007748386,0.3432155,0.000001716677,0.000002394466,0.0000212952,0.00006427077,0.00007339411,0.6352115,0.0001865043,0.0006891842,0.02045118],"study_design_scores_gemma":[0.0006516922,0.00007518599,0.6061142,0.00002161159,0.000006421158,0.00001346602,0.0003510632,0.00004711959,0.3547402,0.0008726813,0.03677642,0.0003299161],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9845657,0.0003290195,0.00006509633,0.01023127,0.00009882647,0.0003270149,0.000007318035,0.00009911866,0.00427667],"genre_scores_gemma":[0.9967996,0.00005525017,0.0008352296,0.0008682807,0.00001132987,0.00007333919,0.000005011319,0.00001096887,0.001340935],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2804713,"threshold_uncertainty_score":0.9985204,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01041943861340295,"score_gpt":0.2676041465901117,"score_spread":0.2571847079767087,"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."}}