PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9463899-5 1997 Using a non-polar trapping column enrichment factors found for n-alkanes in the range of C7 to C10 ranged from 15 to 150 and agree well with calculated values. n-alkanes 63-72 homeobox C10 Homo sapiens 95-98