Mass-Spectrometric Observation of C+ Ions during Electrospray with In-Source Atomizationстатья
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Дата последнего поиска статьи во внешних источниках: 3 февраля 2022 г.
Авторы:
D’yachenko A.A.,
Blashenkov N.M.,
Samsonova N.S.,
Gall L.N.,
Semenov A.A.,
Lizunov A.V.,
Gall N.R.
Аннотация:Carbon C⁺ ions formed in a mass-spectrometric electrospray source with controlled in-source fragmentation and atomization interface have been observed for the first time. The measurements were performed in a special MI-20 LowMass mass spectrometer (MS-Bio LLC) using aqueous methanol solutions of lithium and beryllium salts. The peak of C⁺ ions was substantially broadened as compared to the peaks of metal ions. A model is proposed that explains the formation of C⁺ ions due to charge exchange immediately at the high-vacuum boundary near the skimmer output.