Measurement of Gas-Phase Hydroperoxides by Chemical Ionization Mass Spectrometry

Measurement of Gas-Phase Hydroperoxides by Chemical Ionization Mass Spectrometry

A new method for the detection of gas-phase hydroperoxides is described. The clustering chemistry of CF3O- is exploited to produce speciated measurements of several hydroperoxides with high sensitivity and fast time response. Correspondence of airborne observations made with this technique and the e...

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Veröffentlicht in:Analytical chemistry (Washington) 2006-10, Vol.78 (19), p.6726-6732
Hauptverfasser: Crounse, John D, McKinney, Karena A, Kwan, Alan J, Wennberg, Paul O
Format: Artikel
Sprache:eng
Schlagworte:
Analytical chemistry
Gases
Mass spectrometry
Measurement
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Zusammenfassung:A new method for the detection of gas-phase hydroperoxides is described. The clustering chemistry of CF3O- is exploited to produce speciated measurements of several hydroperoxides with high sensitivity and fast time response. Correspondence of airborne observations made with this technique and the established HPLC method is illustrated. CF3O- appears to be a highly versatile reagent ion for measurements of both weak and strong acids in the atmosphere.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac0604235