PMC:7795856 / 30318-30408 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"548","span":{"begin":48,"end":60},"obj":"Chemical"},{"id":"549","span":{"begin":71,"end":82},"obj":"Chemical"}],"attributes":[{"id":"A548","pred":"tao:has_database_id","subj":"548","obj":"MESH:C032159"},{"id":"A549","pred":"tao:has_database_id","subj":"549","obj":"MESH:C030544"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"using a concentration gradient of up to 80% v/v acetonitrile, 0.1% v/v formic acid over 20"}