Chromatography - Rf Values Flashcards
1
Q
What is solvent front?
A
distance moved by compound / distance moved by solvent
or
Compound
Rf x Solvent
2
Q
What is the dot on the line?
A
starting position of mixture
3
Q
What is always less than 1.0?
A
the Rf values
4
Q
The higher the Rf value the more what is soluble?
A
the compound is in the solvent
5
Q
How should you measure?
A
from centre of spot to the starting line
6
Q
What should you keep the same?
A
units
