@article {122,
	title = {Isotopic characterization of aerosol organic carbon components over the eastern United States},
	journal = {Journal of Geophysical Research-Atmospheres},
	volume = {117},
	year = {2012},
	note = {id: 2252; PT: J; TC: 1; UT: WOS:000306237000001},
	pages = {D13303-D13303},
	abstract = {Carbon isotopic signatures (delta C-13, Delta C-14) of aerosol particulate matter total organic carbon (TOC) and operationally defined organic carbon (OC) components were measured in samples from two background sites in the eastern U. S. TOC and water-soluble OC (WSOC) delta C-13 values (-27 to -24 parts per thousand) indicated predominantly terrestrial C-3 plant and fossil derived sources. Total solvent extracts (TSE) and their aliphatic, aromatic, and polar OC components were depleted in delta C-13 (-30 to -26 parts per thousand) relative to TOC and WSOC. Delta C-14 signatures of aerosol TOC and TSE (-476 to +25 parts per thousand) suggest variable fossil contributions (similar to 5-50\%) to these components. Aliphatic OC while comprising a small portion of the TOC (},
	issn = {0148-0227},
	doi = {10.1029/2011JD017153},
	author = {Wozniak, Andrew S. and Bauer, James E. and Dickhut, Rebecca M. and Xu, Li and McNichol, Ann P.}
}
