Hydrodynamic chromatography of macromolecules on 2 μm non-porous spherical silica gel packings

1989 ◽  
Vol 27 (11-12) ◽  
pp. 585-590 ◽  
Author(s):  
J. C. Kraak ◽  
R. Oostervink ◽  
H. Poppe ◽  
U. Esser ◽  
K. K. Unger
Keyword(s):  
Silica Gel ◽  
Hydrodynamic Chromatography ◽  
Spherical Silica

scholarly journals Spherical Silica Gel Beads with Macropores Prepared from Water Glass

2006 ◽  
Vol 114 (1327) ◽  
pp. 282-285 ◽  
Author(s):  
Makoto OTSUDA ◽  
Ryoji TAKAHASHI ◽  
Satoshi SATO ◽  
Toshiaki SODESAWA ◽  
Masanari ISHIZUKI ◽  
...  
Keyword(s):  
Silica Gel ◽  
Water Glass ◽  
Gel Beads ◽  
Spherical Silica

scholarly journals SEC Separation of Polysaccharides Using Macroporous Spherical Silica Gel as a Stationary Phase

2018 ◽  
Vol 81 (10) ◽  
pp. 1365-1372
Author(s):  
Tomasz Krawczyk ◽  
Mariusz Zalewski ◽  
Anna Janeta ◽  
Paweł Hodurek
Keyword(s):  
Stationary Phase ◽  
Silica Gel ◽  
Spherical Silica

Simulation of Water Flow in a Coated Nano Pore by a Molecular Dynamics

2008 ◽  
Vol 57 ◽  
pp. 73-79
Author(s):  
K. Yamamoto ◽  
T. Iwatsubo ◽  
Ken-ichi Saitoh ◽  
T. Moriuchi
Keyword(s):  
Molecular Dynamics ◽  
Contact Angle ◽  
Silica Gel ◽  
Contact Angles ◽  
Dissipation Energy ◽  
Water Flows ◽  
Piston Cylinder ◽  
Pore Length ◽  
Spherical Silica ◽  
Extension Force

This paper presents on a new damping element called the colloidal damper which is used a principle of surface extension force in nano pore. The direction acting of the surface extension force of water in hydrophobic nano pore is different in pressurization and decompressurization processes [1,2]. This principle is applied to a damping element. The nano pore is constructed by silica gel. A silica gel ball of 100-200 micrometer dia. has many nano pores of 5-20 nanometer dia. in it [3,4]. The coated spherical silica gel and water are inserted in a piston - cylinder unit in order to work as a damper. If compression and decompression forces are added to the piston - cylinder unit (damper), water flows into and moves out the nano pore under balance of pressure. A contact angle of compression formed by the hydrophobic nano pore and water is larger than that of decompression. This difference of the contact angle produces a damping energy. In this paper, behavior of water in the pore of silica gel is investigated using the molecular dynamics. Dissipation energy of the colloidal damper is concerned with the contact angles of water in the pore. So the contact angles are calculated for changing parameters, i.e. size of the pore, length of the hydrophobic material, velocity (pressure) of water flows into the pore. Then these results are compared with the experimental ones.

ChemInform Abstract: Physico-Chemical Properties of Micro-Spherical Silica Gel for High- Performance Liquid Chromatography.

ChemInform ◽  
2010 ◽  
Vol 24 (25) ◽  
pp. no-no
Author(s):  
N. V. ZHURAVLEVA ◽  
K. I. SAKODYNSKII ◽  
M. A. KUKLINA ◽  
V. M. KUKLIN ◽  
N. N. SUKHANOV
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Silica Gel ◽  
High Performance ◽  
Chemical Properties ◽  
Physico Chemical ◽  
Spherical Silica

scholarly journals The Mechanism of Pseudomorphic Transformation of Spherical Silica Gel into MCM-41 Studied by PFG NMR Diffusometry

Materials ◽  
2013 ◽  
Vol 6 (9) ◽  
pp. 3688-3709 ◽  
Author(s):  
Wolf-Dietrich Einicke ◽  
Dirk Enke ◽  
Muslim Dvoyashkin ◽  
Rustem Valiullin ◽  
Roger Gläser
Keyword(s):  
Silica Gel ◽  
Spherical Silica ◽  
Pfg Nmr ◽  
Nmr Diffusometry ◽  
Mcm 41
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