{"id":"W4200579649","doi":"10.3791/53416-v","title":"Measurement of H<sub>2</sub>S in Crude Oil and Crude Oil Headspace Using Multidimensional Gas Chromatography, Deans Switching and Sulfur-selective Detection","year":2015,"lang":"en","type":"article","venue":"Journal of Visualized Experiments","topic":"Advanced Chemical Sensor Technologies","field":"Engineering","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"Natural Resources Canada","funders":"","keywords":"Hydrogen sulfide; Sulfur; Gas chromatography; Chemistry; Chromatography; Sulfide; Hydrogen; Chemiluminescence; Analytical Chemistry (journal); 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":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.0003599608,0.0003399877,0.0006301196,0.0004808838,0.00007097011,0.0000302164,0.0001327912,0.0002033897,0.000001354783],"category_scores_gemma":[0.0002560538,0.0003277658,0.0001051747,0.000395999,0.0001031772,0.0003795828,0.00009183565,0.0003889789,5.010527e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0006094324,"about_ca_system_score_gemma":0.00002791858,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00002759388,"about_ca_topic_score_gemma":0.0000334855,"domain_scores_codex":[0.9977201,0.00007043505,0.0007791862,0.0002590237,0.0007675826,0.0004036672],"domain_scores_gemma":[0.9988847,0.00006268824,0.0003727338,0.0001574149,0.0003097422,0.0002127378],"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":[0.0002808048,0.0001439259,0.0005785453,0.00007400416,0.0001543486,0.00002301033,0.0008035672,0.001882839,0.9915153,0.00001600922,0.00001121195,0.004516433],"study_design_scores_gemma":[0.003526049,0.0002117416,0.0004771035,0.0005634637,0.00004386442,0.0001501143,0.0006529434,0.004338694,0.9894533,0.0001950284,0.00008831969,0.0002993601],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9876905,0.009216059,0.002653016,0.00002025417,0.0001980061,0.00006385033,0.000002153293,0.00009790485,0.00005825133],"genre_scores_gemma":[0.9904923,0.0009904364,0.008391636,0.000009696518,0.00004959549,0.000007902947,5.1391e-7,0.00005616174,0.00000176906],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.008225623,"threshold_uncertainty_score":0.9999174,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03053519931705781,"score_gpt":0.3294105997216243,"score_spread":0.2988754004045665,"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."}}