PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32583581-6 2020 Remarkably, nitrate conversion and nitrogen selectivity are both close to 100% in an ultralow concentration of 10 mg L-1 , meeting drinking water standard. Nitrogen 35-43 L1 cell adhesion molecule Homo sapiens 117-120