TY - JOUR
T1 - The photoelectric aerosol sensor array as a tool for on line and in situ analysis of heavy metal aerosols
AU - Niessner, Reinhard
AU - Hemmerich, Beate
AU - Panne, Ulrich
N1 - Funding Information:
The financial support of this study by the DeutscheF orschungsgemeinschaafnt d the Fonds der ChemischenI ndustrie is gratefully acknowledge. U.P. thanks the Studienstiftung des DeutschenV olkes for a fellowship.
PY - 1990/1
Y1 - 1990/1
N2 - The technique of substance-selective aerosol charging by photoelectron emission was applied to several ultrafine heavy metal aerosols. To enhance the selectivity of the photoelectric aerosol sensor (PAS), an array operating with four different wavelengths (185, 214, 229 and 254 nm) was used. The photoelectric activity at each wavelength and the linearity of the PAS signal was investigated for monodisperse and quasi-polydisperse systems. The aerosol mass concentration was determined by correlation with atomic absorption spectroscopy measurements of filter samples. Pattern recognition was applied to differentiate between four different aerosol systems and to identify common interferences.
AB - The technique of substance-selective aerosol charging by photoelectron emission was applied to several ultrafine heavy metal aerosols. To enhance the selectivity of the photoelectric aerosol sensor (PAS), an array operating with four different wavelengths (185, 214, 229 and 254 nm) was used. The photoelectric activity at each wavelength and the linearity of the PAS signal was investigated for monodisperse and quasi-polydisperse systems. The aerosol mass concentration was determined by correlation with atomic absorption spectroscopy measurements of filter samples. Pattern recognition was applied to differentiate between four different aerosol systems and to identify common interferences.
UR - http://www.scopus.com/inward/record.url?scp=0025229079&partnerID=8YFLogxK
U2 - 10.1016/0925-4005(90)80212-I
DO - 10.1016/0925-4005(90)80212-I
M3 - Article
AN - SCOPUS:0025229079
SN - 0925-4005
VL - 1
SP - 261
EP - 266
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
IS - 1-6
ER -