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WebMay 1, 2013 · Aqueous extracts of Ageratum conyzoides L. harvested in Brazil (commercial, flowering and non-flowering samples) were prepared according to the prescribed method and analyzed by HPLC-HRMS. The pyrrolizidine alkaloids lycopsamine, dihydrolycopsamine, and acetyl-lycopsamine and their N -oxides, were detected in the … WebGoogle Scholar 9 I. P. Gerothanassis, I. N. Demetropoulos, C. Vakka, Hydration of cis and trans N -methylformamide as revealed by the use of O-17-NMR, molecular mechanics, …
Google scholar gerothanassis
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WebThe solvation of trans amides has been investigated by the use of full gradient optimization ab initio quantum mechanical calculation techniques. The complexes have been determined at the Hartree–Fock (HF) level with a 4-31G*/4-31G** basis set and at the second-order Moller–Plesset perturbation (MP2) level. Three NMA–water clusters were investigated: … Webscholar: [noun] a person who attends a school or studies under a teacher : pupil.
WebJun 22, 2009 · Crossref, CAS, Google Scholar; 2 Olsen DL, Peck TL, Webb AG, Magin RL, ... Gerothanassis IP, Vervoort J. LC–UV–solid phase extraction–NMR–MS combined with a cryogenic flow probe and its application to the identification of compounds present in greek oregano. Anal. Chem. 75,6288–6294 (2003). Web[Google Scholar] Gerothanassis IP, Birlirakis N, Karayannis T, Tsikaris V, Sakarellos-Daitsiotis M, Sakarellos C, Vitoux B, Marraud M. 17O NMR and FT-IR study of the …
WebJan 3, 2024 · Recently, there has been great interest in the lipidomic of marine lipids and their potential health benefits. Processing of seafood products can potentially modify the characteristics and composition of lipids. The present study investigated the effect of processing methods (salting and fermentation) on the positional distribution of fatty acids … WebJul 15, 2010 · The extraction of lemon balm (Melissa officinalis) leaves with aqueous methanol was optimised using response surface methodology.Fifteen runs were conducted following a Box-Behnken design (BBD) followed by ridge analysis using the concentration of methanol, the extraction temperature and time as the independent variables and taking …
WebWe report the successful use of nuclear magnetic resonance (NMR) of naturally abundant 17O to determine oxygen functionalities in synthetic fuels. Heteroatomic (N, S, O) species are a significant…. Expand. Lanthanide‐induced shifts in the 17O NMR spectra of 1,6‐anhydro‐β‐D‐hexopyranoses.
WebApr 1, 2003 · A phase alternating ring down elimination pulse sequence combined with inverse-gated decoupling (RIDE-Gate) (Gerothanassis, 1986, Frund, 1988) was applied to avoid distortion of the spectra by acoustic ringing of the probe and the Nuclear Overhauser effect. ... Google Scholar. Spengler, 1997. B. Spengler. north las vegas white pagesWebSep 17, 1998 · Application to methanolic extracts of two oregano species}, author={Ioannis P. Gerothanassis and Vassiliki Exarchou and Vasiliki Lagouri and Anastasios Troganis and Maria Z. Tsimidou and Dimitrios Boskou}, journal={Journal of Agricultural and Food Chemistry}, year={1998}, volume={46}, pages={4185-4192} } ... Semantic Scholar is a … how to say timesheet in spanishWebLike Google, Google Scholar allows searching of metadata terms, but unlike Google, it also indexes full text. Choose the default search or select “Advanced search” to search … how to say time to die in chinese