教師資料查詢 | 類別: 期刊論文 | 教師: 吳慧芬 HUI-FEN WU (瀏覽個人網頁)

標題:Observation of self-ion-molecule reactions during collisionally activated dissociation in an ion-trap mass spectrometer
學年92
學期2
出版(發表)日期2004/04/01
作品名稱Observation of self-ion-molecule reactions during collisionally activated dissociation in an ion-trap mass spectrometer
作品名稱(其他語言)
著者Wu, Hui-fen; Wu, Mon-tin; Chen, Chien-hung
單位淡江大學化學學系
出版者Chichester: John Wiley & Sons Ltd.
著錄名稱、卷期、頁數Journal of mass spectrometry 39(4), pp.396-401
摘要This paper describes the formation of protonated molecules ([M + H]+) and adduct ions by self-ion-molecule reactions (SIMR) during collisionally activated decomposition (CAD) of methyne addition ions ([M + CH]+) produced from chemical ionization (CI) or SIMR in both an external and internal source ion-trap mass spectrometer (ITMS). The CAD results for the methyne addition ions of dopamine produced from both SIMR and dimethyl ether CI undertaken in the external and internal source ITMS were compared in order to prove the occurrence of SIMR during CAD processes. Compared with the external source ITMS, the internal source ITMS is much more easily applicable to this type of reaction owing to the large population of neutral analytes present in the trap.
關鍵字ion–molecule reactions; ion trap; dopamine
語言英文
ISSN1076-5174;1096-9888
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