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Rapid Characterization of Complex Viscous Liquids at the Molecular Level

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  • W.S.L. is grateful for financial support from an ETH Fellowship and from the Eidgenössische Stipendienkommission für ausländische Studierende (ESKAS). Partial financial support from MOST (China, grant no. 2009 DFA41880) is gratefully acknowledged.

Abstract

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Sticky subject: An N2 stream forms bubbles inside bulk viscous liquids, which create an aerosol sample through a microjetting mechanism (see picture). This aerosol is then analyzed by extractive electrospray ionization (EESI) mass spectrometry (MS). EESI-MS reveals the molecular composition of complex liquids and the kinetics of ongoing processes occurring in the highly viscous liquids without any sample pretreatment.

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