{"id":"W2001241481","doi":"10.1016/j.chroma.2005.05.065","title":"Extraction of testosterone and epitestosterone in human urine using aqueous two-phase systems of ionic liquid and salt","year":2005,"lang":"en","type":"article","venue":"Journal of Chromatography A","topic":"Chemical and Physical Properties in Aqueous Solutions","field":"Chemical Engineering","cited_by":274,"is_retracted":false,"has_abstract":false,"ca_institutions":"","funders":"World Anti-Doping Agency; National Natural Science Foundation of China","keywords":"Chemistry; Chromatography; Extraction (chemistry); Epitestosterone; Ionic liquid; High-performance liquid chromatography; Aqueous solution; Urine; Solid phase extraction; Analyte; Detection limit; Hydrolysis; Aqueous two-phase system; Solvent; Sample preparation; Organic chemistry; Androgen; Biochemistry","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004636993,0.0004238888,0.00031856,0.0004420882,0.0004130849,0.0004348757,0.0002674428,0.0005946003,0.0008154965],"category_scores_gemma":[0.0009257121,0.0002547804,0.0003106197,0.000338055,0.0003576439,0.0003710714,0.0002291014,0.000454887,0.0006472052],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001741748,"about_ca_system_score_gemma":0.0006583965,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001011978,"about_ca_topic_score_gemma":0.001138205,"domain_scores_codex":[0.9996697,0.00009610134,0.00004604656,0.00005774332,0.00008258926,0.00004790323],"domain_scores_gemma":[0.9997686,0.00008829912,0.00002196614,0.00001549293,0.00006480229,0.00004088768],"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":[0.001696468,0.00007631541,0.002159112,0.0001657643,0.00003344192,0.0001789275,0.00009837577,0.0001510554,0.9836987,0.0001539781,0.0001166817,0.01147113],"study_design_scores_gemma":[0.00005851172,0.0004098948,0.003284114,0.00001536183,0.00004524912,0.0004835645,0.00005225764,0.0008130109,0.992965,0.00006385593,0.00179729,0.00001199515],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9593561,0.008455793,0.02837647,0.0004663506,0.0002268922,0.0001727023,0.000483828,0.0001933843,0.002268496],"genre_scores_gemma":[0.9696522,0.003704205,0.02003355,0.0003722972,0.0001247417,0.0001149208,0.0009200469,0.00005805112,0.005019902],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001011978,"threshold_uncertainty_score":0.002728164,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01837004744191087,"score_gpt":0.2883109555998236,"score_spread":0.2699409081579127,"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."}}