{"id":"W2063399584","doi":"10.1016/s0021-9673(99)01350-3","title":"Speciation of dimethylarsinic acid and monomethylarsonic acid by solid-phase microextraction–gas chromatography–ion trap mass spectrometry","year":2000,"lang":"en","type":"article","venue":"Journal of Chromatography A","topic":"Analytical chemistry methods development","field":"Chemistry","cited_by":55,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Waterloo","funders":"","keywords":"Chemistry; Solid-phase microextraction; Chromatography; Derivatization; Extraction (chemistry); Gas chromatography–mass spectrometry; Arsenic; Detection limit; Mass spectrometry; Solid phase extraction; 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","insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0009871165,0.0004782767,0.001061769,0.0006625301,0.0001401812,0.00009263182,0.0004514658,0.0003810162,0.003431441],"category_scores_gemma":[0.0001183966,0.0004670957,0.0008267575,0.001325667,0.0003411757,0.0004909756,0.00003286415,0.0007949744,0.000007395368],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001484363,"about_ca_system_score_gemma":0.0001384244,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000006995952,"about_ca_topic_score_gemma":7.947395e-7,"domain_scores_codex":[0.9963063,0.0001271701,0.001718854,0.0004579146,0.0008395215,0.0005502159],"domain_scores_gemma":[0.9973214,0.000226892,0.001351964,0.0004304759,0.0002219806,0.0004473311],"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":[0.000330075,0.0007395765,0.002531883,0.0003015934,0.0007890238,0.00004349545,0.0001433646,0.000001743667,0.9802012,0.0000132518,0.0005002187,0.01440456],"study_design_scores_gemma":[0.002844717,0.0002894512,0.001673823,0.0002486525,0.0003391287,0.0004561965,0.0002162132,0.00005173037,0.9882179,0.001281692,0.003946397,0.0004340913],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9769939,0.008661528,0.01093236,0.0002145675,0.0001067014,0.0001015072,0.00007033068,0.00004799435,0.002871108],"genre_scores_gemma":[0.9558679,0.004007149,0.03962355,0.00004227101,0.0002506552,0.000005833247,0.00002477528,0.00005769052,0.0001202005],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0286912,"threshold_uncertainty_score":0.9997781,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01111993921371582,"score_gpt":0.2927325890689495,"score_spread":0.2816126498552337,"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."}}