{"id":"W2143392180","doi":"10.1002/rcm.3026","title":"Compound‐specific hydrogen isotope analysis of 1,2‐dichloroethane: potential for delineating source and fate of chlorinated hydrocarbon contaminants in groundwater","year":2007,"lang":"en","type":"article","venue":"Rapid Communications in Mass Spectrometry","topic":"Groundwater and Isotope Geochemistry","field":"Earth and Planetary Sciences","cited_by":27,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"International Atomic Energy Agency","keywords":"Chemistry; Mass spectrometry; Chlorine; 1,2-Dichloroethane; Groundwater; Gas chromatography; Detection limit; Isotope analysis; Hydrocarbon; Isotope; Analytical Chemistry (journal); Environmental remediation; Contamination; Chromatography; Environmental chemistry; 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":[],"consensus_categories":[],"category_scores_codex":[0.001318363,0.0001729798,0.0005242008,0.001015353,0.00009151582,0.00002722091,0.0006606702,0.0001138293,0.0001255571],"category_scores_gemma":[0.00004053944,0.0001710592,0.0001176978,0.001798819,0.0002268058,0.0001406345,0.00007350543,0.0002333727,0.000001425937],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0000282891,"about_ca_system_score_gemma":0.0000187487,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002200436,"about_ca_topic_score_gemma":0.002757789,"domain_scores_codex":[0.9982165,0.0001019865,0.0008144437,0.0002836347,0.0002076591,0.0003757603],"domain_scores_gemma":[0.9984424,0.0003995479,0.0002560612,0.0007638862,0.00007503235,0.00006309894],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001889644,0.0001614932,0.9549277,0.00006338106,0.0002352955,0.000004132506,0.0005679473,0.002105253,0.0333865,0.00006419765,0.000001893163,0.008293221],"study_design_scores_gemma":[0.001420936,0.0001993021,0.8425057,0.00005683796,0.0001762356,0.00001149174,0.001402649,0.1238145,0.02934819,0.0005277125,0.0002401439,0.0002962851],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9896533,0.002270937,0.006607795,0.000061719,0.00003498579,0.0002854819,0.00005226769,0.00001501688,0.001018525],"genre_scores_gemma":[0.9912414,0.0007084762,0.007493868,0.00001352515,0.0000178054,0.000005594473,0.0004732728,0.000007237443,0.00003880524],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1217093,"threshold_uncertainty_score":0.6975591,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01791526243466447,"score_gpt":0.2494813587955141,"score_spread":0.2315660963608497,"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."}}