TY - JOUR
T1 - A new approach for fast, simultaneous NO/NO2 analysis
T2 - Application of basic features of multiphoton-induced ionization and dissociation of NOx
AU - Bornschlegl, A.
AU - Weishaeupl, R.
AU - Boesl, U.
PY - 2006/1
Y1 - 2006/1
N2 - A new method of simultaneously recording NO and NO2 concentrations in complex gas mixtures is described. This method is based on resonance enhanced multiphoton ionization (REMPI), on time-of-flight mass analysis, and on monitoring the kinetic energy released upon dissociation of NO2. Its benefits are high speed and high flexibility. NO/NO 2 analysis can therefore be combined with the simultaneous monitoring of other components. For instance, NH3 is a compound of interest when studying the chemical reactions of NOx in catalytic converters of combustion engines. The spectroscopic excitation schemes used for this new method are discussed in detail. Its reliability has been demonstrated by performing measurements at an industrial motor test facility. This novel technique performs well in comparison with conventional NOx analysis using chemiluminescence detection. [Figure not available: see fulltext.].
AB - A new method of simultaneously recording NO and NO2 concentrations in complex gas mixtures is described. This method is based on resonance enhanced multiphoton ionization (REMPI), on time-of-flight mass analysis, and on monitoring the kinetic energy released upon dissociation of NO2. Its benefits are high speed and high flexibility. NO/NO 2 analysis can therefore be combined with the simultaneous monitoring of other components. For instance, NH3 is a compound of interest when studying the chemical reactions of NOx in catalytic converters of combustion engines. The spectroscopic excitation schemes used for this new method are discussed in detail. Its reliability has been demonstrated by performing measurements at an industrial motor test facility. This novel technique performs well in comparison with conventional NOx analysis using chemiluminescence detection. [Figure not available: see fulltext.].
KW - Fast chemical analysis
KW - Kinetic energy release
KW - Laser mass spectrometry
KW - NO analysis
KW - Resonance enhanced multiphoton ionization
UR - http://www.scopus.com/inward/record.url?scp=29144487715&partnerID=8YFLogxK
U2 - 10.1007/s00216-005-0151-1
DO - 10.1007/s00216-005-0151-1
M3 - Article
AN - SCOPUS:29144487715
SN - 1618-2642
VL - 384
SP - 161
EP - 168
JO - Analytical and Bioanalytical Chemistry
JF - Analytical and Bioanalytical Chemistry
IS - 1
ER -