Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Charles Q Jiao"'
Publikováno v:
Journal of the American Society for Mass Spectrometry. 7:118-122
A pulsed-leak valve that allows the introduction of a prolonged, flat, and controllable pulse of gas is described. Test results from the valve that utilized a Fourier transform ion cyclotron resonance mass spectrometer with Ar and C2H6 as the sample
Publikováno v:
The Journal of Physical Chemistry. 100:4755-4759
The reactions of niobium cluster cations (Nbn+, n = 1−15) with propene and 1-butene are studied using Fourier transform ion cyclotron resonance (FTICR) mass spectrometry. Reaction product distributions as a function of cluster size are presented. T
Publikováno v:
Journal of the American Society for Mass Spectrometry. 6:521-524
A study of the addition of Cu(II) to a ubiquitin electrospray solution shows that the copper ion in the ubiquitin remains doubly charged and displaces two protons on the protonated protein molecule. This observation indicates a chelating bond between
Autor:
Ben S. Freiser, Charles Q. Jiao
Publikováno v:
The Journal of Physical Chemistry. 99:3969-3977
Autor:
Ben S. Freiser, Charles Q. Jiao
Publikováno v:
Journal of the American Chemical Society. 115:6268-6276
The inertness of SF[sub 6] is well-known to be associated with the protective layer of F atoms which obstructs the access to the reactive S center by an attacking species. Previous gas-phase studies of SF[sub 6] involved reactants having high ionizat
Publikováno v:
Rapid Communications in Mass Spectrometry. 7:404-408
The distribution of negative carbon clusters, C, is studied in the size range from 4 to 100 atoms using a Smalley compact supersonic source interfaced to a Fourier transform mass spectrometer. Tht mass spectrum of the anion clusters shows three regio
Publikováno v:
Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena. 32:031805
Niobium nanoclusters with an average diameter from 2 nm to 10 nm were produced using a plasma gas condensation process. Cluster size and concentration can be tuned by controlling the sputter source current, aggregation length, and gas flow rate. In t
Publikováno v:
Plasma Sources Science & Technology; Feb2011, Vol. 20 Issue 1, p015013-015013, 1p