analytical chemistry-chromatography

solvent in paper chromatography is called.....

• mobile phase

• stationary phase

what is the stationary phase in paper chromatography?

• water trapped in cellulose fibres of the paper

• The absorbent paper

• solvent

the chromatogram using amino acids can be revealed as bluish spots using........

• tollen's reagent

• fehlings reagent

• ninhydrin reagent

• azo spray

what is the stationary phase in TLC?

• Slurry of Al2O3 on solid base

• paper absorbent

• thin layer of silver nitrate

• copper sulfate

which of the following will have greater attraction towards the stationary phase in TLC?

• Polar molecules

• non polar molecules

TLC is also known as ........chromatography

• paper

• thick paper

• absorbtion

• adsorption

which one is faster?

• paper chromatography

• TLC

in cannabis analysis, TLC uses silica sprayed with silver nitrate solution. What is the mobile phase?

• nitrobenzene

• methylbenzene

• phenol

• phenylamine

In GLC, what is the stationary phase?

• non polar liquid with high boiling point

• silver nitrate

• ninhydrin solution

• alumina and silica

what is the mobile phase in GLC?

• polar solvent

• non polar solvent

• inert gas

• CDCl3 gas