The spectra are interpreted in terms of predominant metal protonation of the complexes. The most abundant ion in the spectrum of dibenzenechromium is the molecular ion which perhaps results from H atom loss from the protonated ion. Comparisons are made between gaseous ionic and solution behavior ...
A cumulative spectrum is the sum of all spectra of all the peaks in a pyrogram [127] of a specific polymer. Particular peak information is lost in this technique, but characteristic cumulative spectra can be generated for different polymers. An example of a cumulative spectrum for the pyro...
The major peak in the spectrum of 1,1-dimethylcyclohexane appears at 1.83 cm2/Vs, while an additional peak appears at 1.63 cm2/Vs. The elevated baseline between the product ion peaks and the reactant ion peak indicates the additional occurrence of fragmentations of product ions formed for ...
C:\Users\s\anaconda3\envs\my-rdkit-env\lib\site-packages\tensorflow\python\framework\dtypes.py:528: FutureWarning: Passing (type, 1) or '1type' as a synonym of type is deprecated; in a future version of numpy, it will be understood as (type, (1,)) / '(1,)type'. ...
Pinho, G.P., Silverio, F.O., Evangelista, G.F., Mesquita, L.V., Barbosa, E.S.: Determination of chlorobenzenes in sewage sludge by solid–liquid extraction with purification at low temperature and gas chromatography mass spectrometry. J. Braz. Chem. Soc. 25, 1292–1301 (2014) CAS ...
in case of benzene or monochlorobenzene, the ion species of M+is generated by the atmospheric pressure chemical ionization method in the positive ionization mode. Accordingly, in an actual sample gas measurement, by alternately measuring positive and negative ionization modes, it is possible to incre...
FIG. 11 shows the structure of 1,4-dicyanobenzene and an ETD spectrum of substance P obtained using this reagent. The inset spectrum shows the characteristic modification of the singly charged precursor isotope distribution produced by charge reduction of multiply protonated species. ...
At 600掳, m- and p-nitrotoluenes arylate benzene and chlorobenzene to give methylbiphenyls and methylchlorobiphenyls, respectively; o-nitrotoluene shows a markedly different behavior. It interchanges its oxygen and methyl hydrogen atoms to form anthranilic acid. With methanol, it gives methyl ...
A compact supersonic jet/multiphoton ionization/mass spectrometer (SSJ/MPI/MS) equipped with a single pump system was developed for use in the analysis of dioxin. A mass spectrum and multiphoton ionization spectrum were obtained for chlorobenzene and dibenzofuran using an optical parametric oscillator ...
Ultrahigh-mass resolving power, m/Δm50%≈735 000, was obtained for 1-bromo-2-chlorobenzene with accurate isotopic ratio measurement. Base line resolution was observed for two of the closest commonly encountered mass doublets, C3/SH4 (m2-m1=3.4 mDa at m/z=190) and SH313C/C4 (m2-m1=...