Wynn, Peter M; Brocks, Jochen
RATIONALE The organic content of speleothem calcite is a well-recognized component of their chemical composition. To date, the techniques for interpretation of this material include UV fluorescence, FTIR spectroscopy and biomarker analysis using gas chromatography/mass spectroscopy (GC/MS). However, investigation of the minute concentrations of molecules in speleothems demands careful sampling and laboratory controls. METHODS To be certain extracted molecules were encapsulated at the time of...[Show more]
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