PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32157888-7 2020 For example, when using acetonitrile solutions of formic acid and ammonium bicarbonate as the prewetting and DESI spray solvent, respectively, the intensity of chymotrypsinogen improved dramatically compared to controls but less so for smaller proteins such as myoglobin and cytochrome c. acetonitrile 24-36 myoglobin Capra hircus 261-270