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

Autor(en)

Gerhard Steiner, Michel Attoui, Daniela Wimmer, Georg Reischl

Abstrakt

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.

Organisation(en)

Aerosolphysik und Umweltphysik

Externe Organisation(en)

Université Paris XII - Paris-Est-Créteil-Val-de-Marne

Journal

Aerosol Science and Technology

Band

44

Seiten

308-315

Anzahl der Seiten

8

ISSN

0278-6826

DOI

https://doi.org/10.1080/02786821003636763

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/aa0a3987-f706-4947-8937-3a1f9f3abda8