Mass Spectrometry
Online ISSN : 2186-5116
Print ISSN : 2187-137X
ISSN-L : 2186-5116
Original Article
Collision-Induced Dissociation Study of the Adduct Ions Produced in NO3-Free Area of Atmospheric Pressure Negative Corona Discharges under Ambient Air Conditions
Kanako SekimotoNatsuki MatsudaMitsuo Takayama
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2013 年 2 巻 1 号 p. A0020

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Collision-induced dissociation (CID) experiments of adducts [M+R] with negative atmospheric ions R (O2, HCO3 and COO(COOH)) produced in NO3-free discharge area in atmospheric pressure corona discharge ionization (APCDI) method were performed using aliphatic and aromatic compounds M. The [M+R] adducts for individual R fragmented to form deprotonated analytes [M−H] as well as the specific product ions which also occurred in the CID of [M−H], independent of analytes with several different functional groups. The results obtained suggested that the specific product ions formed in the CID of [M+R], as well as CID of [M−H], are generated due to further fragmentation of the product ions [M−H]. It was concluded, therefore, that CID of [M+R] formed in NO3-free discharge area can indirectly lead to the formation of the product ions originating from [M−H].

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© 2013 The Mass Spectrometry Society of Japan
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