PMC:7544943 / 13753-13811 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T65","span":{"begin":25,"end":26},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"The systems were kept at a buffer concentration of 0.15 M."}

{"project":"LitCovid-sentences","denotations":[{"id":"T132","span":{"begin":0,"end":58},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The systems were kept at a buffer concentration of 0.15 M."}