PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2530919-4 1989 The incorporation of these crown ether-phosphate ester ionophores into poly(vinyl chloride) membrane electrodes yields a CRP-sensitive electrode with sensitivity in the microgram per milliliter range. Polyvinyl Chloride 71-91 C-reactive protein Homo sapiens 121-124