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Are Adsorption and partition chromatography types of column chromatography?
Yes,both can performed in columns.
How do you design an adsorption experiment of colour on adsorbent?
put the beads in bacterial liquid culture for some day for adsorption. check the coating by conducting SEM surface topology.
What is the role of carrier RNA in DNA isolation?
Carrier RNA reduces the pKa of the silica membrane and electrostatic repulsion between DNA and the column, thereby increasing the adsorption of DNA to the column
What has the author S C Saxena written?
S. C. Saxena has written: 'Thermal accommodation and adsorption coefficients of gases' -- subject(s): Absorption and adsorption, Accommodation coefficient, Gases 'Dust removal from hot and compressed gas streams by fibrous- and granular-bed filters' -- subject(s): Cleaning, Dust, Filters and filtration, Gases, Removal
Does chemical adsorption have a high adsorption enthalpy?
no
What has the author Ben W Lykins written?
Ben W Lykins has written: 'Chlorine dioxide disinfection and granular activated carbon adsorption' -- subject(s): Activated Carbon, Carbon, Activated, Effect of chlorine on, Plants
Why physical adsorption is reversible process?
adsorption is processs of accumulation of liquid/gases on solid surface. reversible adsorption is seen in physical adsorption where increase in pressure increases the adsorption and decrease in pressure decrease adsorption of molecules to surface that is desorption takes place
What has the author C B Hopkins written?
C. B. Hopkins has written: 'Granular carbon treatment of raw sewage' -- subject(s): Activated Carbon, Adsorption, Pilot plants, Purification, Sewage, Sewage disposal plants
Does physical adsorption have a low adsorption enthalpy?
yes it does...even though physical adsorption is an exothermic reaction, its enthalpy of adsorption is pretty low aroun 20 to 40 kJ/mol
What is the difference between a column constraint and a table constraint?
column constraint is for a single column. table constraint is for an entire table.
Which property of compounds is responsible for the separation in TLC?
The general Principle involved in tlc is similar to that of column chromatography i.e. adsorption chromatography. In the adsorption process, the solute competes with the solvent for the surface sites of the adsorbent. Depending on the distribution coefficients, the compounds are distributed on the surface of the adsorbent.
How do silica gel works in adsorption column chromatography?
The use of silica gel can be interpreted in two ways. It well know that silica (SiO2) can adsorb water on its surface. If you use silica dryed under 400 °C, the process of adsorption occurs by the silanol group. So, molecules with a polar groups like hydroxil, amine, nitrilic ... can make chemical interactions with the silica surface and can be retained more time into a column. In this case the adsorption is chemical. But, if you use a deactived silica (~5% H2O), the H2O molecules make a layer into a silica surface and the main process occurs by partition chromatography.
