{"id":"W4412165523","doi":"10.1021/acs.analchem.5c00694","title":"Direct, Selective, and Rapid Measurement of HCN at Sub-ppb Levels Using HiT-CD-IMS: Applications to Cell Culture and Breath Analysis","year":2025,"lang":"en","type":"article","venue":"Analytical Chemistry","topic":"Advanced Chemical Sensor Technologies","field":"Engineering","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"York University; University of Toronto","funders":"","keywords":"Chemistry; Breath gas analysis; Environmental chemistry; Chromatography","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":[],"consensus_categories":[],"category_scores_codex":[0.00003999717,0.000174885,0.0003363035,0.00006544043,0.0000506625,0.00001327867,0.0001116467,0.0001568823,0.00001241239],"category_scores_gemma":[0.00007825265,0.0001685526,0.00007181349,0.0008931017,0.00009978066,0.00002875383,0.0001007064,0.000149537,6.693824e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002416414,"about_ca_system_score_gemma":0.000006649476,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000005278519,"about_ca_topic_score_gemma":0.00000481702,"domain_scores_codex":[0.9990971,0.000004139171,0.0002192179,0.0003109069,0.0001600848,0.0002085535],"domain_scores_gemma":[0.9994584,0.00004811145,0.00002970163,0.0002630864,0.0001058535,0.00009482331],"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":[0.000005486449,0.00002135544,0.00127407,0.0002024373,0.0002953431,8.380952e-7,0.00001642412,0.002214647,0.9951547,0.00001388532,0.0001737155,0.0006271166],"study_design_scores_gemma":[0.0001278082,0.000004520773,0.0006762886,0.00002444698,0.0004991583,0.000001501461,0.00004606296,0.006134143,0.991188,0.0001248092,0.001009469,0.00016383],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9687701,0.002206344,0.01662047,0.00007057316,0.000005811617,0.0001781605,0.00006712659,0.0002392186,0.01184212],"genre_scores_gemma":[0.9978772,0.0001155127,0.00170752,0.00001576255,0.0000116268,0.00001679117,0.000007211845,0.0000115639,0.0002368347],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.029107,"threshold_uncertainty_score":0.6873375,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01397131601012484,"score_gpt":0.2428411985647854,"score_spread":0.2288698825546606,"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."}}