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Rapid Characterization of Complex Viscous Liquids at the Molecular Level


  • 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.


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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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