Zobrazeno 1 - 9
of 9
pro vyhledávání: '"D. G. Sheven'"'
Publikováno v:
Journal of Structural Chemistry. 63:2101-2112
Autor:
V. V. Pervukhin, D. G. Sheven
Publikováno v:
Journal of Analytical Chemistry. 71:878-887
It was found that the use of a Collison nebulizer as an ionization source for the mass-spectrometric analysis of the aqueous solutions of opium alkaloids makes it possible to determine opiates with the limits of detection of 8.8 × 10–9, 8.83 × 10
Publikováno v:
Technical Physics. 61:1262-1268
We have proposed that a Collison-type nebulizer be used as an ionization source for mass spectrometry with ionization under atmospheric pressure. This source does not require the use of electric voltage, radioactive sources, heaters, or liquid pumps.
Publikováno v:
Technical Physics Letters. 40:1078-1081
It is proposed to use a Collison nebulizer as a source of ionization for mass-spectrometry with ionization at atmospheric pressure. This source does not require an electric voltage, radioactive sources, heaters, or liquid pumps. It is shown that the
Autor:
V. V. Pervukhin, D. G. Sheven
Publikováno v:
Journal of Analytical Chemistry. 69:1047-1051
A possibility of the detection of acrylamide from aqueous solutions at reduced pressures using an ion mobility increment spectrometer-mass spectrometer has been studied. An increase in instrumental resolution for ions containing acrylamide and obtain
Autor:
V. V. Pervukhin, D. G. Sheven
Publikováno v:
Technical Physics. 59:1300-1309
A method of desorption/ionization in a microdischarge with ion vortex focusing (vortex focusing microdischarge, VFM) is suggested. A glow microdischarge is initiated in an air flow, and resulting ions act on the surface of interest. As a model compou
Publikováno v:
Instruments and Experimental Techniques. 55:244-247
A device for the preliminary separation of ions based on an ion mobility increment spectrometer with cylindrical geometry of its electrodes is described. The device is operated in tandem with an atmospheric-pressure ionization mass spectrometer. The
Autor:
D. G. Sheven, V. V. Pervukhin
Publikováno v:
Technical Physics Letters. 34:977-980
A new method is proposed and verified, according to which the resolving power of an ion mobility increment spectrometer (IMIS) can be increased by applying a voltage of certain fixed frequency (ripple voltage) to the output electrode. The results of
Autor:
V. V. Pervukhin, D. G. Sheven
Publikováno v:
Technical Physics. 53:110-116
The formation of a charge cloud due to ions passing through a set of electrodes that constitute an atmospheric-pressure ion mobility increment spectrometer is considered. Since this cloud disturbs the passage of ions separated in the spectrometer, it