PMC:7571312 / 36005-36293 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T246","span":{"begin":74,"end":244},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"TLC and terminated as judged by the consumption of the starting material. LCMS utilized wavelengths of 254 and 220 nm and either electrospray ionization (ESI) in positive mode or atmospheric-pressure chemical ionization (APCI) in positive mode. The TLC plates were visualized using UV lig"}