Dear Maria,

try

Rogers K.M. and Savard M.M. (1999) Detection of petroleum contamination
along the St. Lawrence River, Quebec City area, using d13C analysis of
individual n-alkanes by GC-IRMS. Organic Geochemistry, V30, No 12, 1559-1569.

and references therein. If you have any questions I would be happy to help
off-list.

Kind regards

Karyne

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Dr Karyne Rogers
Stable Isotope Facility
Geological and Nuclear Sciences
Lower Hutt
New Zealand
email [log in to unmask]

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