Publications de Adrian Hess | EPFL Graph Search

A Practical Guide on Coupling a Scanning Mobility Sizer and Inductively Coupled Plasma Mass Spectrometer (SMPS-ICPMS)

Christian Ludwig, Debora Foppiano, Mohamed Tarik, Adrian Hess

A large variety of analytical methods are available to characterize particles in aerosols and suspensions. The choice of the appropriate technique depends on the properties to be determined. In many fields information about particle size and chemical compo ...

Journal Of Visualized Experiments2017

Online Size and Element Analysis of Aerosol Particles Released from Thermal Treatment of Wood Samples Impregnated with Different Salts

Christian Ludwig, Debora Foppiano, Mohamed Tarik, Adrian Hess

Thus far, the elemental characterization of particles in energy conversion process gases and emissions has conventionally either been performed offline or information on the particle size has not been available. Such processes include combustion in engines ...

American Chemical Society2016

Online Detection of Selenium and Its Retention in Reducing Gasification Atmosphere

Christian Ludwig, Andrea Testino, Mohamed Tarik, Adrian Hess

The emission of selenium from coal gasification processes can cause harm to the environment and downstream equipment. With upcoming legislation, reliable detection as well as control of such gas species become crucial. This study therefore addresses the de ...

American Chemical Society2016

Measuring air borne nanoparticles for characterizing hyphenated RDD-SMPS-ICPMS instrumentation

Christian Ludwig, Mohamed Tarik, Adrian Hess

Scanning Mobility Particle Sizer (SMPS) and Inductively Coupled Plasma Mass Spectrometry (ICPMS), complemented by a Rotating Disk Diluter (RDD) to a hyphenated RDD-SMPS-ICPMS measuring setup, allow online and simultaneous determination of size distribution ...

Elsevier2016

Time-resolved size and element analysis of gas-borne nanoparticles

Adrian Hess

Physical and chemical characterization of gas-borne particles in the nanometer to sub-micrometer size range is important in many applications, such as nanoparticle related health studies, the monitoring of powder or dust distribution processes, assessing t ...

EPFL2016

A hyphenated SMPS-ICPMS coupling setup: Size-resolved element specific analysis of airborne nanoparticles

Christian Ludwig, Mohamed Tarik, Adrian Hess

Physical and chemical characterization of gas borne particles in the nanometer to sub micrometer size range includes knowledge about particle size distribution and chemical composition, possibly with a high time resolution. However, most of the available t ...

Elsevier Sci Ltd2015