Matches in SemOpenAlex for { <https://semopenalex.org/work/W2003995024> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2003995024 endingPage "175" @default.
- W2003995024 startingPage "170" @default.
- W2003995024 abstract "An assessment of the stability of organic macromolecules in the presence of oxidants believed to exist on the surface of Mars is critical in order to evaluate their utility as martian biomarkers. Two types of organic macromolecules—tholins produced from plasma discharge in a 99.9:0.1 N2/CH4atmosphere (985896), and terrestrial humic acid—were subjected to oxidation by 30% H2O2in water at three temperatures and the overall observed rate constantkfor oxidation to volatile species determined for each temperature. The temperature dependence ofkfor tholin oxidation by H2O2, assuming pseudo-first-order kinetics, is logk= 1.98 − 912/T, withkin days−1andTin Kelvins. The half-lives for oxidative destruction of tholins calculated from this relationship are 0.35 yr at equatorial mean temperature (215 K) and 24 yr at polar mean temperature (150 K). For humic acid, logk= 14.77 − 4500/T, resulting in half-lives of 2700 yr at 215 K and 3.2 × 1012yr at 150 K. These half-lives are only estimates, given significant uncertainties in the application of psuedo-first-order kinetic analysis and extrapolation over wide temperature ranges. The data suggest, however, that some organic macromolecules may be stable against oxidation on the martian surface, at least in the polar regions, over the entire history of Mars." @default.
- W2003995024 created "2016-06-24" @default.
- W2003995024 creator A5001099081 @default.
- W2003995024 creator A5009533927 @default.
- W2003995024 creator A5049497679 @default.
- W2003995024 date "1998-03-01" @default.
- W2003995024 modified "2023-10-13" @default.
- W2003995024 title "Oxidation of Organic Macromolecules by Hydrogen Peroxide: Implications for Stability of Biomarkers on Mars" @default.
- W2003995024 cites W1964838399 @default.
- W2003995024 cites W1968713120 @default.
- W2003995024 cites W1972133040 @default.
- W2003995024 cites W2003714103 @default.
- W2003995024 cites W2006438948 @default.
- W2003995024 cites W2009723183 @default.
- W2003995024 cites W2014766582 @default.
- W2003995024 cites W2025152715 @default.
- W2003995024 cites W2034817055 @default.
- W2003995024 cites W2040971253 @default.
- W2003995024 cites W2044624514 @default.
- W2003995024 cites W2054832581 @default.
- W2003995024 cites W2075632544 @default.
- W2003995024 cites W2084541009 @default.
- W2003995024 cites W2087656591 @default.
- W2003995024 cites W2131107714 @default.
- W2003995024 cites W2150160008 @default.
- W2003995024 doi "https://doi.org/10.1006/icar.1998.5896" @default.
- W2003995024 hasPublicationYear "1998" @default.
- W2003995024 type Work @default.
- W2003995024 sameAs 2003995024 @default.
- W2003995024 citedByCount "46" @default.
- W2003995024 countsByYear W20039950242012 @default.
- W2003995024 countsByYear W20039950242013 @default.
- W2003995024 countsByYear W20039950242016 @default.
- W2003995024 countsByYear W20039950242018 @default.
- W2003995024 countsByYear W20039950242020 @default.
- W2003995024 countsByYear W20039950242021 @default.
- W2003995024 countsByYear W20039950242022 @default.
- W2003995024 countsByYear W20039950242023 @default.
- W2003995024 crossrefType "journal-article" @default.
- W2003995024 hasAuthorship W2003995024A5001099081 @default.
- W2003995024 hasAuthorship W2003995024A5009533927 @default.
- W2003995024 hasAuthorship W2003995024A5049497679 @default.
- W2003995024 hasBestOaLocation W20039950241 @default.
- W2003995024 hasConcept C107872376 @default.
- W2003995024 hasConcept C121332964 @default.
- W2003995024 hasConcept C1276947 @default.
- W2003995024 hasConcept C178790620 @default.
- W2003995024 hasConcept C185592680 @default.
- W2003995024 hasConcept C204389451 @default.
- W2003995024 hasConcept C2776219924 @default.
- W2003995024 hasConcept C2778600265 @default.
- W2003995024 hasConcept C2780560099 @default.
- W2003995024 hasConcept C2780965034 @default.
- W2003995024 hasConcept C29705727 @default.
- W2003995024 hasConcept C533411734 @default.
- W2003995024 hasConcept C55493867 @default.
- W2003995024 hasConcept C83260615 @default.
- W2003995024 hasConcept C87355193 @default.
- W2003995024 hasConceptScore W2003995024C107872376 @default.
- W2003995024 hasConceptScore W2003995024C121332964 @default.
- W2003995024 hasConceptScore W2003995024C1276947 @default.
- W2003995024 hasConceptScore W2003995024C178790620 @default.
- W2003995024 hasConceptScore W2003995024C185592680 @default.
- W2003995024 hasConceptScore W2003995024C204389451 @default.
- W2003995024 hasConceptScore W2003995024C2776219924 @default.
- W2003995024 hasConceptScore W2003995024C2778600265 @default.
- W2003995024 hasConceptScore W2003995024C2780560099 @default.
- W2003995024 hasConceptScore W2003995024C2780965034 @default.
- W2003995024 hasConceptScore W2003995024C29705727 @default.
- W2003995024 hasConceptScore W2003995024C533411734 @default.
- W2003995024 hasConceptScore W2003995024C55493867 @default.
- W2003995024 hasConceptScore W2003995024C83260615 @default.
- W2003995024 hasConceptScore W2003995024C87355193 @default.
- W2003995024 hasIssue "1" @default.
- W2003995024 hasLocation W20039950241 @default.
- W2003995024 hasOpenAccess W2003995024 @default.
- W2003995024 hasPrimaryLocation W20039950241 @default.
- W2003995024 hasRelatedWork W1500757811 @default.
- W2003995024 hasRelatedWork W1535802115 @default.
- W2003995024 hasRelatedWork W1666463933 @default.
- W2003995024 hasRelatedWork W1970457476 @default.
- W2003995024 hasRelatedWork W1983571399 @default.
- W2003995024 hasRelatedWork W1994522597 @default.
- W2003995024 hasRelatedWork W2007080654 @default.
- W2003995024 hasRelatedWork W2028175322 @default.
- W2003995024 hasRelatedWork W2059610826 @default.
- W2003995024 hasRelatedWork W4361269125 @default.
- W2003995024 hasVolume "132" @default.
- W2003995024 isParatext "false" @default.
- W2003995024 isRetracted "false" @default.
- W2003995024 magId "2003995024" @default.
- W2003995024 workType "article" @default.