A search for porphyrin biomarkers in nonesuch shale and extraterrestrial samples

Details A search for porphyrin biomarkers in nonesuch shale and extraterrestrial samples A search for porphyrin biomarkers in nonesuch shale and extraterrestrial samples

Jan 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973slsci...4...69r&link_type=abstract

Space Life Sciences, Volume 4, Issue 1, pp.69-77

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Scientific paper

An organic solvent extract of billion year old Nonesuch Shale was examined for porphyrins by means of fluorometry and high resolution mass spectrometry. It appears to contain at least three or more classes of porphyrins, one similar to tetraphenyl porphin and the others more complex. Many are apparently chelated with copper, nickel, zinc, iron and vanadyl and are highly aromatic. We have also examined the extracts of Apollo 11, 12 and 14 surface fines for pophyrins by spectrophotofluorometry but we found none even though our method was capable of detecting 10-13 moles per gm of sample.

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