Zobrazeno 1 - 10
of 154
pro vyhledávání: '"R. Vespalec"'
Autor:
D.V. Filosofov, R. Vespalec, D.V. Karaivanov, Robert Holomb, J. Khushvaktov, Lukas Zavorka, A. A. Solnyshkin, Miroslav Zeman, J. Vrzalova, Karel Katovsky, V.B. Brudanin, V.M. Tsupko-Sitnikov, J. Adam, Ivan Haysak
Publikováno v:
2020 21st International Scientific Conference on Electric Power Engineering (EPE).
This paper shows the results from the experiment that was done in JINR (Joint Institute for Nuclear Research) Dubna. Thorium foil between two aluminum foils was irradiated inside Phasotron with 100 MeV protons. As a result - gamma spectra was obtaine
Publikováno v:
Biomedical Chromatography. 28:694-707
In this study, the screening steps of chiral separation strategies with polysaccharide-based chiral stationary phases were applied on boron cluster compounds in normal-phase liquid chromatography (NPLC) and polar organic solvents chromatography (POSC
Autor:
Robert Holomb, Ivan Haysak, R. Vespalec, J. Adam, Karel Katovsky, Lukas Zavorka, A. A. Solnyshkin, V.M. Tsupko-Sitnikov, J. Khushvaktov, J. Vrzalova, Miroslav Zeman, D.V. Karaivanov, V.B. Brudanin, S.A. Tari, D.V. Philosophov
Publikováno v:
EPJ Web of Conferences, Vol 204, p 04006 (2019)
The paper shows the results of experimental gamma spectra obtained with a thorium 232Th target and an aluminum collector irradiated at the JINR Synchrocyclotron with the internal beam of energies of 100 and 600 MeV. For 232Th there were identified 25
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 92:147-157
If water or an aqueous solution is replaced by an organic liquid of low polarity and permittivity, e.g. an n-heptane—acetone 9 : 1 (v/v) mixture, a reproducible and time-independent streaming current is generated in the bed of a water-soluble solid
Publikováno v:
Electrophoresis. 13:677-682
A procedure is proposed for the calculation of the actual effective mobility of a zone from its migration time. It is based on the use of internal standards with known mobilities; the use of two internal standards provides reliable mobility data even
Autor:
R. Vespalec, M. Ciganková
Publikováno v:
Chromatographia. 32:514-522
The applicability and precision of the method allowing the determination of several characteristics of the sorbent and its bed from two simple chromatographic retention measurements were tested with porous metal oxides and some other solids. The typi
Publikováno v:
Journal of Chromatography A. 543:475-478
The enantioselectivity of bonded bovine serum albumin (BSA) which has been destroyed by high temperatures can be restored by exposure to methanol, common water-based mobile phases are inefficacious. The effectiveness of methanol demostrates that BSA
Autor:
R. Vespalec, J. Neča
Publikováno v:
Journal of Chromatography A. 541:257-264
A stainless-steel analytical column of 2 mm I.D. served as an electrokinetic detector. The minimum detectable amounts of nitrophenols eluted from both unmodified and chemically modified silica gel with n-heptane-acetone (90:10) acidified with 10 ppm
Autor:
R. Vespalec, J. Neča
Publikováno v:
Journal of Chromatography A. 514:161-170
A chromatographic column with an electrically conductive wall can be used as an electrokinetic detector even for separation in reversed-phase systems. The high detection sensitivity is comparable to that of electrokinetic detectors placed behind the
Publikováno v:
ChemInform. 36