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Videos 1 - 8 for Isoprenoid01:03 -1 year ago fragments of the same mass can be formed when an isoprenoid loses a methyl group. Common mass ions of isoprenoids, also, yield large peaks in the mass spectra of ... youtube.com more open pop 01:04 -1 year ago The James M. DuPont Meteorite Collection - is a diterpenoid or isoprenoid which is, also, a common component of fish and crude oils. The concentrations of phytane in 10 ... youtube.com more open pop 01:07 -1 year ago loss of some alkyl, usually methyl substituents, from the highly substituted isoprenoid ring systems. Conse- (juently, aromatics formed from terpenes and steroids would ... youtube.com more open pop 00:57 -1 year ago The James M. DuPont Meteorite Collection - that saturated isoprenoid type hydrocarbons synthe- sized either by living things*-'* or from sterol and isoprenol remnants of organisms ... youtube.com more open pop 00:56 -1 year ago acids and alcohols and sulfate ions. Conversions of olefinic steroid and isoprenoid acids and alcohols into stable aromatic molecules result ... Meteorite Life Fossils ... youtube.com more open pop 01:46 -1 year ago The James M. DuPont Meteorite Collection - spectrometric studies on the isoprenoids and other isomeric alkanes in carbonaceous chondrite s." Geochim. Cosmochim.Acta 34, 981-994 ... youtube.com more open pop 01:06 -1 year ago are indicative of poly alkyl-substituted or branched chain alkanes such as isoprenoids. Saturated hydrocarbons, made by hydrogenating products of the abiotic Fischer- ... youtube.com more open pop 01:12 -1 year ago '* ' that naturally occurring aromatics may be products of transformations of isoprenoids and steroids, and this proposal has recently been supported by the identification of ... youtube.com more open pop |
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