Polysaccharides, Proteins, and Phytoplankton Fragments: Four Chemically Distinct Types of Marine Primary Organic Aerosol Classified by Single Particle Spectromicroscopy
Figure 3
Normalized average spectra for each of the four marine particle types and (below) corresponding reference spectra with similar features. Spectra were reproduced from [41] (alginic acid), [38] (carbohydrate and protein-like marine POM), and http://xray1.physics.sunysb.edu/~micros/xas/xas.html, unpublished (CaCO). Vertical grey lines mark relevant transitions (from left to right): 285 eV (R(C = C)R), 286.7 eV (R(C=O)R), 288.1 eV (R(C–H)R), 288.3 eV (R–NH(C=O)R), 289.5 eV (R–COH), 290.4 eV (), 292 eV (R(C–H)R), 297.4 eV (K), and 299 eV (K).
