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43 votes
Chromatogram results are considered to have better resolution if the RF values of the components being separated or further apart rather than closer together

User Romah
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2 Answers

17 votes
17 votes

Answer:

True

Step-by-step explanation:

The resulting Rf factor, which has no units, is dependent upon the specific stationary and mobile phase used. Chromatogram results are considered to have better resolution if the Rf values of the components being separated are farther apart (e.g. 0.3 and 0.7) rather than closer together (e.g. 0.4 and 0.5). The distance the compound moves relative to the distance the solvent (or mobile phase or eluent) moves is a characteristic of that compound. (where Rf is equal to distance compound moved divided by solvent front distance)

User JackHasaKeyboard
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2.9k points
20 votes
20 votes

Answer:

False

Step-by-step explanation:

False : It is better they are closer together

The RF ( retention factor ) is calculated with this formula

= distance travelled / distance travelled by solvent

And the larger the RF factor of a compound the less polar the compound ( i.e. it will not stick to the stationary phase ) hence it is better the RF values of the components to be closer

User Saad Aleem
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2.3k points