Dual carbon-isotopic fingerprinting

Biologically-derived compounds may be distinguished from similar compounds produced from a petrochemical source or from fossil fuel carbon by dual carbon-isotopic fingerprinting. This method can distinguish chemically identical materials (96). In addition, such methods have gained some importance in discriminating between natural and industrial pollution (97). 

For example, biologically-derived 1,3-propanediol, and compositions comprising biologically-derived 1,3-propanediol, maybe completely distinguished from their petrochemical derived coimterparts on the basis of and dual carbon-isotopic fingerprinting (96). 

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See also in sourсe #XX -- [ ]

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