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The detection and complete separation of crocetane (2,6,11,15-tetramethylhexadecane) and phytane (2,6,10,14-tetramethylhexadecane), two widely investigated hydrocarbon biomarkers for archaea in geological environments, are reported. The essential components of the analysis are a series of derivatized cyclodextrin capillary GC stationary phases. In addition, the further separation of stereoisomers...
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