{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T21:52:31Z","timestamp":1777585951550,"version":"3.51.4"},"reference-count":32,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2009,8,1]],"date-time":"2009-08-01T00:00:00Z","timestamp":1249084800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Eur J Mass Spectrom (Chichester)"],"published-print":{"date-parts":[[2009,8]]},"abstract":"\n Electron ionisation (EI) and fast atom bombardment (FAB) mass spectral fragmentations of nine 2,4-(and 2,1-) disubstituted o-( m- and p-)nitro-(chloro- and bromo-)-2-thiocytosinium halides are investigated. Fragmentation pathways, whose elucidation is assisted by accurate mass measurements and metastable transitions [EI-mass spectrometry (MS)], as well as FAB\/collision-induced dissociation (CID) mass spectra measurements are discussed. The correlations between the abundances of the (C\n 11<\/jats:sub>\n H\n 10<\/jats:sub>\n N\n 4<\/jats:sub>\n SO\n 2<\/jats:sub>\n )\n +<\/jats:sup>\n 1\u20133; (C\n 11<\/jats:sub>\n H\n 10<\/jats:sub>\n N\n 3<\/jats:sub>\n SCl)\n +<\/jats:sup>\n 4\u20136 and (C\n 11<\/jats:sub>\n H\n 10<\/jats:sub>\n N\n 3<\/jats:sub>\n SBr)\n +<\/jats:sup>\n 7\u20139 ions and the selected fragment ions (EI-MS), as well as (C\n 18<\/jats:sub>\n H\n 16<\/jats:sub>\n N\n 5<\/jats:sub>\n SO\n 4<\/jats:sub>\n )\n +<\/jats:sup>\n 1\u20133; (C\n 18<\/jats:sub>\n H\n 16<\/jats:sub>\n N\n 3<\/jats:sub>\n SCl\n 2<\/jats:sub>\n )\n +<\/jats:sup>\n 4\u20136 and (C\n 18<\/jats:sub>\n H\n 16<\/jats:sub>\n N\n 3<\/jats:sub>\n SBr\n 2<\/jats:sub>\n )\n +<\/jats:sup>\n 7\u20139 ions and the selected ions (C\n 7<\/jats:sub>\n H\n 6<\/jats:sub>\n NO\n 2<\/jats:sub>\n )\n +<\/jats:sup>\n 1\u20133; (C\n 7<\/jats:sub>\n H\n 6<\/jats:sub>\n Cl)\n +<\/jats:sup>\n 4\u20136; (C\n 7<\/jats:sub>\n H\n 6<\/jats:sub>\n Br)\n +<\/jats:sup>\n 7\u20139 (FAB-MS) are discussed. The data obtained can be used for distinguishing isomers.\n <\/jats:p>","DOI":"10.1255\/ejms.996","type":"journal-article","created":{"date-parts":[[2009,6,1]],"date-time":"2009-06-01T10:31:18Z","timestamp":1243852278000},"page":"497-506","source":"Crossref","is-referenced-by-count":2,"title":["Differentiation of the Isomeric\n o<\/i>\n -(\n m<\/i>\n - and\n p<\/i>\n -) Nitro-(Chloro- and Bromo-)Benzyl-2,4-(and 2,1-) Disubstituted 2-Thiocytosinium Halides by Electron Impact Ionisation and Fast Atom Bombardment Mass Spectrometry"],"prefix":"10.1177","volume":"15","author":[{"given":"Tomasz","family":"Pospieszny","sequence":"first","affiliation":[{"name":"Faculty of Chemistry, Adam Mickiewicz University, Grunwa\u0142dzka 6, 60-780 Pozna\u0144, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"El\u017cbieta","family":"Wyrzykiewicz","sequence":"additional","affiliation":[{"name":"Faculty of Chemistry, Adam Mickiewicz University, Grunwa\u0142dzka 6, 60-780 Pozna\u0144, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2009,10,1]]},"reference":[{"key":"bibr1-ejms.996","doi-asserted-by":"publisher","DOI":"10.1177\/095632029901000404"},{"key":"bibr2-ejms.996","doi-asserted-by":"publisher","DOI":"10.1080\/15257779508012445"},{"key":"bibr3-ejms.996","doi-asserted-by":"publisher","DOI":"10.1177\/095632020201300201"},{"key":"bibr4-ejms.996","doi-asserted-by":"publisher","DOI":"10.1248\/cpb.48.454"},{"key":"bibr5-ejms.996","doi-asserted-by":"publisher","DOI":"10.1248\/bpb.22.100"},{"key":"bibr6-ejms.996","unstructured":"Yup C.L., Shah R., Day A.R. \u201cMetabolic control of penicillinase biosynthesis in\n Bacillus cerens\n \u201d, J. 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