Chromatographic-mass spectrometric analyses carried out on the irradiated solutions and extracts from artificially aged Shk paint mock-ups, detected 5,8-dihydroxy-2-(1‑hydroxy-3-oxo-4-methyl-4-pentenyl)-l,4-naphthoquinone as degradation product, together with newly identified intermediate species ...
molecular ionsquartz crystal microbalance5 to 10 keVsolid Ne/ A7920N Atom-, molecule-, and ion-surface impact and interactions/ electron volt energy 5.0E+03 to 1.0E+04 eV / Ne/sur Ne /elA pronounced molecular effect in the sputtering of solid neon by molecular medium-mass ions has been...
What is the mass of 4.91 X 10^21 platinum atoms? What are the mass and the atomic number for the anion of Cl-35? If an atom has 52 protons, 63 neutrons, and 54 electrons, what is the overall mass of this atom (in amu)?
Molecular Weight of Substances Definition and molecular weight (molar mass) of some common substances. The molecular weight of a substance, also called the molar mass , M, is the mass of 1 mole of that substance, given in M gram. In the SI system the unit of M is (kg/kmol) and ...
Purified peptides were analyzed by mass spectrometry using a Q Exactive Hybrid Quadrupole-Orbitrap mass spectrometer (Thermo Fisher Scientific) (Supplementary Fig. 23 and Supplementary Table 5). CD spectroscopy Lyophilized protein constructs were weighed and dissolved in a 20 mM sodium phosphate, 100...
Purified peptides were analyzed by mass spectrometry using a Q Exactive Hybrid Quadrupole-Orbitrap mass spectrometer (Thermo Fisher Scientific) (Supplementary Fig. 23 and Supplementary Table 5). CD spectroscopy Lyophilized protein constructs were weighed and dissolved in a 20 mM sodium phosphate, 100...
In early mass spectrometry experiments, collision of accelerated C60+• or C70+• with helium gas resulted in encapsulation of a single helium atom by the fullerene cage14,15,16,17, and lead to the development of the first methods for preparation of non-metal endofullerenes by high energy...
1 and the molecular structure was fully characterized by NMR spectroscopy, high-resolution mass spectrometry and single-crystal X-ray analysis (Fig. 2a). Fig. 2: Light-response behavior of BODIPY/Motor. a Crystal structure of BODIPY/Motor with a thermal ellipsoid set at the 50% probability ...
select article Resonant two-photon ionization of nitric oxide with mass selective ion detection Research articleAbstract only Resonant two-photon ionization of nitric oxide with mass selective ion detection H. Zacharias, R. Schmiedl, K.H. Welge Pages 239-242 Article preview Abstract Abstract The reso...
A molecular sieve is defined as an artificially prepared zeolite, such as sodium, potassium, or calcium aluminosilicates, with microporous tunnel-like structures that selectively retain small molecules based on their size, commonly used for separating low molecular mass inorganic gases and hydrocarbons....