<P> Paper chromatography is an analytical method used to separate colored chemicals or substances . It is primarily used as a teaching tool , having been replaced by other chromatography methods , such as thin - layer chromatography . A paper chromatography variant , two - dimensional chromatography involves using two solvents and rotating the paper 90 ° in between . This is useful for separating complex mixtures of compounds having similar polarity , for example , amino acids . The setup has three components . The mobile phase is a solution that travels up the stationary phase , due to capillary action . The mobile phase is generally an alcohol solvent mixture , while the stationary phase is a strip of chromatography paper , also called a chromatogram . A chromatographic method is called adsorption chromatography if the stationary phase is solid . </P>
<P> Paper chromatography is an analytical method used to separate colored chemicals or substances . It is primarily used as a teaching tool , having been replaced by other chromatography methods , such as thin - layer chromatography . A paper chromatography variant , two - dimensional chromatography involves using two solvents and rotating the paper 90 ° in between . This is useful for separating complex mixtures of compounds having similar polarity , for example , amino acids . The setup has three components . The mobile phase is a solution that travels up the stationary phase , due to capillary action . The mobile phase is generally an alcohol solvent mixture , while the stationary phase is a strip of chromatography paper , also called a chromatogram . A chromatographic method is called adsorption chromatography if the stationary phase is solid . </P>
when do we carry out a dimensional paper chromatography
when do we carry out a dimensional paper chromatography
separating complex mixtures of compounds having similar polarity
separating complex mixtures of compounds having similar polarity