{"id":"W2055430551","doi":"10.1016/j.chroma.2004.09.018","title":"Comparison of extraction methods for quantitation of methionine and selenomethionine in yeast by species specific isotope dilution gas chromatography–mass spectrometry","year":2004,"lang":"en","type":"article","venue":"Journal of Chromatography A","topic":"Selenium in Biological Systems","field":"Nursing","cited_by":75,"is_retracted":false,"has_abstract":false,"ca_institutions":"National Research Council Canada","funders":"","keywords":"Chemistry; Chromatography; Isotope dilution; Extraction (chemistry); Tetramethylammonium hydroxide; Derivatization; Gas chromatography–mass spectrometry; Methanesulfonic acid; Mass spectrometry; Sample preparation; Gas 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":[0.002575341,0.0002672714,0.001132422,0.00156392,0.00008184153,0.00004553408,0.0002582707,0.0002877459,0.00002483052],"category_scores_gemma":[0.0002544371,0.0002263842,0.0004544095,0.001962138,0.0002872183,0.0003818827,0.00001960662,0.0004053254,4.2684e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001186284,"about_ca_system_score_gemma":0.00002574943,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00006310135,"about_ca_topic_score_gemma":0.000009290758,"domain_scores_codex":[0.9966032,0.0004624281,0.001827626,0.0002804666,0.000518673,0.0003076353],"domain_scores_gemma":[0.9964916,0.000646021,0.002183957,0.0001951803,0.0003752405,0.0001079624],"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":[0.0006483431,0.0005890228,0.04818202,0.0003184062,0.0001361702,8.026807e-7,0.0007032662,0.0001183628,0.9455615,0.001992274,0.0002277503,0.001522115],"study_design_scores_gemma":[0.00339031,0.00271607,0.1897376,0.0006521561,0.0001440366,0.0001081807,0.00220222,0.000190586,0.7928461,0.006019132,0.001703043,0.0002905164],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.8473091,0.01133944,0.1397135,0.0004129811,0.0006403805,0.0004618767,0.00002402315,0.00002104372,0.00007767183],"genre_scores_gemma":[0.8246565,0.0005799098,0.1745841,0.000008971489,0.0001252876,0.000008887333,0.0000130545,0.00002219234,0.00000106918],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1527153,"threshold_uncertainty_score":0.9231679,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04204572722473942,"score_gpt":0.3767384001345371,"score_spread":0.3346926729097977,"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."}}