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About The Cover

September 21, 2009 Cover, Vol. 87, Issue 38

September 21, 2009 Cover, Vol. 87, Issue 38

Digging Into Asphaltenes

Mass spectrometry uncovers chemical details of petroleum's most recalcitrant fraction. (pp. 12-17)

COVER: The Athabasca oil sands in northern Canada, pictured here, are a source of asphaltene-rich petroleum. Newscom

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Copyright © 2009 American Chemical Society

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