Ratiometric quantitation of thiol metabolites using non-isotopic mass tags.
Sign Up to like & getrecommendations! Published in 2018 at "Analytica chimica acta"
DOI: 10.1016/j.aca.2018.02.057
Abstract: Ratiometric quantitation is used in mass spectrometry to account for variations in ionization efficiencies due to heterogenous sample matrixes. Isotopes are most commonly used to achieve ratiometric quantitation because of their ability to co-elute chromatographically… read more here.
Keywords: thiol; quantitation; mass; non isotopic ... See more keywords
Equivalent non‐isotopic spheres in 4‐manifolds
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Topology"
DOI: 10.1112/topo.12121
Abstract: We construct infinitely many smooth oriented 4-manifolds containing pairs of homotopic, smoothly embedded 2-spheres that are not topologically isotopic, but that are equivalent by an ambient diffeomorphism inducing the identity on homology. These examples show… read more here.
Keywords: isotopic spheres; non isotopic; equivalent non; topology ... See more keywords