Chromatography Flashcards
1
Q
What is the stationary phase
A
Paper
2
Q
What is the mobile phase
A
Solvent
3
Q
How is separation of a mixture achieved
A
Different substances travel different distances
4
Q
What is the solvent front
A
Distance solvent has moved
5
Q
What is the origin
A
Start line
6
Q
Why is the Rf value useful
A
Can be used to identify different compounds
7
Q
The Rf values are never below….
A
One
8
Q
Why is better to use equipment that has a lid
A
Traps any solvent from escaping
9
Q
Why is an intrumental method better?
A
More rapid , more accurate and more sensitive paper
