Spectroscopic characterization of humic-like substances in airborne particulate matter

作者: N. Havers , P. Burba , J. Lambert , D. Klockow

DOI: 10.1023/A:1005875225800

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摘要: In a standard reference air dust (NIST 1648 – urban particulate matter) as well in airborne matter collected German and rural areas (Dortmund, Sauerland) 10% more of the organic carbon can be attributed to macromolecular substances like humic fulvic acids (HA, FA). Indirect evidence for presence humin was also obtained. HA FA extracted from NIST other atmospheric particles using 0.1 m NaOH isolated by ion-exchangers were characterized their molecular-size distribution applying multistage ultrafiltration, content UV/VIS, Fourier-transformed infrared (FTIR) nuclear magnetic resonance (1H-NMR) spectra. Summarizing, structural studies exhibit that these humic-like (HULIS) contained samples are small molecular size rich aliphatic carbohydrate substructures compared soils aquatic systems.

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