نتایج جستجو برای: triterpene mass fragmentation pattern

تعداد نتایج: 842418  

Journal: :Journal of The American Society for Mass Spectrometry 2019

Journal: :Journal of The American Society for Mass Spectrometry 2011

Journal: :Astronomy and Astrophysics 2021

Context. The formation of high-mass star-forming regions from their parental gas cloud and the subsequent fragmentation processes lie at heart star research. Aims. We aim to study dynamical properties very early evolutionary stages formation. Methods. Employing NOrthern Extended Millimeter Array IRAM 30 m telescope, we observed two young regions, ISOSS22478 ISOSS23053, in 1.3 mm continuum spect...

2017
Michael Neustetter Masoomeh Mahmoodi-Darian Stephan Denifl

Mass spectroscopic investigations on tetrahydrofuran (THF, C4H8O), a common model molecule of the DNA-backbone, have been carried out. We irradiated isolated THF and (hydrated) THF clusters with low energy electrons (electron energy ~70 eV) in order to study electron ionization and ionic fragmentation. For elucidation of fragmentation pathways, deuterated TDF (C4D8O) was investigated as well. O...

Journal: :Monthly Notices of the Royal Astronomical Society 2020

2018
Karel Miettinen Sabrina Iñigo Lukasz Kreft Jacob Pollier Christof De Bo Alexander Botzki Frederik Coppens Søren Bak Alain Goossens

Triterpenes constitute a large and important class of plant natural products with diverse structures and functions. Their biological roles range from membrane structural components over plant hormones to specialized plant defence compounds. Furthermore, triterpenes have great potential for a variety of commercial applications such as vaccine adjuvants, anti-cancer drugs, food supplements and ag...

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