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Studies of Chamber Organic Aerosol using an Aerodyne High Resolution Time of Flight Aerosol Mass Spectrometer

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Figure

Table 2.3: GL fragments observed via AMS and suggested structures from which the fragmentsare formed
Table 2.4: Fragments containing both carbon and nitrogen observed and suggested chemical for-mulas
Figure 2.1:Processes contributing to GL uptake on AS seed aerosol.organosulfates, and carbon-nitrogen containing compounds; oxidation products include oxalate, for-GL=GL monomer;GL·H2O=monohydrate; GL·2H2O=dihydrate; high molecular weight (MW) products include GLn,mate, glyoxylate, and glycolate and their oxidation products.
Figure 2.4: High-resolution (“W-mode”) AMS peaks allow unequivocal assignment of a Cformula to the4H7O5+ m/z 135, C5H5O5+ formula to the m/z 145, and C6H7O6+ formula to the m/z 175fragment ions.
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