In NIST MS Search Spectrum Text Information window, RI values of the first example (Benzene) are displayed asExperimental RI median±deviation (#data) Semi-standard non-polar: 654±11 (226)Standard non-polar: 654±7 (286)Polar: 957±17 (131)...
Multi-step metabolic activation of benzene. Effect of superoxide dismutase on covalent binding to microsomal macromolecules, and identification of glutathi... Incubation of [ 14C]benzene or [ 14C]phenol with liver microsomes from untreated rats, in the presence of a NADPH-generating system, gave ri...
It also permits estimation of the distribution of the contents of the individual types on the basis of their molecular masses, branching of the alkyl chain, number of benzene nuclei in the molecule, etc. A variety of methods for the analysis of mixtures have been developed, sometimes with ...
Determination of benzene, toluene, ethylbenzene and xylenes in air by solid phase micro-extraction/gas chromatography/mass spectrometry[J] . Analytical and Bioanalytical Chemistry . 2004 (5)Tumbiolo, S.; Gal, J.F.; Maria, P.C.; Zerbinati, O. Determination of benzene, toluene, ethylbenzene ...
Re: Mass Spec fragment analysis, m/z 75? «Reply #1 on:April 09, 2016, 12:48:08 AM » The peak of m/z=75 should come from the stripping off of -CONH2group and the -Cl group, as normally you can't fragmentate a benzene ring. ...
A homolytic reaction mechanism was suggested involving the reaction of the radicals formed from the aromatics under EI with C60 at the ionization chamber walls. While the ion/molecule reaction of C60 with benzene performed by Sun et al. under chemical ionization conditions at 200 °C afforded ...
Quadrupole Mass Spec Applications Benzene Fenceline Biofuel Analysis Hydrogen Isotope & Helium Deuterium Analysis Gas Purity Analysis Plasma Analysis Fermentation Control Pyrolysis Analysis Ethylene Ethylene Oxide Natural Gas Metals & Steel Basic Oxygen Process (BOP) ...
FIGS. 7A-7B show positive ion mass spectra of bovine insulin (FIG. 7A) and negative ion mass spectra of a fragile ganglioside lipid (FIG. 7B) generated using the representative ionizing matrices (1) 1,2-dicyanobenzene, (2) 4-methyl phthalonitrile, and relative to (3) 3-NBN at six dif...
It is demonstrated that each of the molecular ions of cyclopropylbenzene and di- n-propyl sulphide, having the same nominal mass m/z 118 and generated from a nearly 1:1 mixture by 70 eV electron impact in a Fourier transform ion cyclotron resonance mass spectrometer, can be selectively ...
Although detection sensitivities decreased for nonpolar molecules such as isoprene, benzene, toluene, and p-xylene, they increased for polar molecules such as acetone and acetaldehyde. This suggests that the operation of the PTR-TOF mass spectrometer at low drift-tube field-strengths improves both ...