PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18965544-7 1992 Interference of copper, up to 100 mug/ml has been eliminated by masking with thiourea and that due to molybdenum by prior separation with thioglycollic acid on PUF. 2-mercaptoacetate 138-156 NME/NM23 nucleoside diphosphate kinase 2 Homo sapiens 160-163