A Medium Flow, High-Resolution Vienna DMA Running in Recirculating Mode

Gerhard Steiner (Korresp. Autor*in), Michel Attoui, Daniela Wimmer, Georg Reischl

Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed


In this work we present the latest design of the Vienna type Differential Mobility Analyzer (DMA). The so-called UDMA is specially designed for high-resolution mobility measurements for the particle size range between 1 and 5 nm and has been optimized to be combined with a mass spectrometer to provide a well-defined mobility fraction of molecular clusters. As the UDMA is designed for this narrow size range it features high-resolution mobility measurements already at flow rates of approximately 700 L/min, marked as medium flow conditions. This readily allows operating the UDMA in a recirculating sheath air flow system with gas cleaning filters, as the control over the purity of the sheath air is crucial for operating the UDMA inline with a mass spectrometer or other carrier gas sensible devices.
Seiten (von - bis)308-315
FachzeitschriftAerosol Science and Technology
PublikationsstatusVeröffentlicht - 2010

ÖFOS 2012

  • 1030 Physik, Astronomie