{"id":"S2005020549","label":"Penning trap mass spectrometry","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2005020549","normalized_label":"penning trap mass spectrometry","broader":["http://id.loc.gov/authorities/subjects/sh85081907"],"aliases":["Ion trap mass spectrometry, Penning","Penning ion trap mass spectrometry","Penning trap mass spectroscopy","Trap mass spectrometry, Penning"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2005020549","provider":"lcsh","revision":"6320e3a25eff76ba","taxonomy_revision":"f050b5d4780b1289","title":"Penning trap mass spectrometry","url":"/topics/S2005020549","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"2330974889600608","address_version":"morton4x16-v1","coordinates":[0,478,2238,5120],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}