Column Quality

Question 1

Resolution equation

Answer 1

R = 2 x delta rt / delta base width

Unit less

Question 2

Acceptable resolution values

Answer 2

An r value less than five and greater than 1.5 is considered good resolution

Question 3

A bigger resolution numbers indicates what

Answer 3

Better separation

Higher r values

Question 4

Efficiency equation

Answer 4

TWO EQUATIONS

One includes retention time and peak width at half peak height

efficiency counts the number of the plates

Question 5

Plates per metre calculations

Answer 5

Efficiency ie number of plates / column length in metres

Question 6

How would you show the parameters on a chromatogram that you need to calculate resolution

Answer 6

Retention time and width will allow you to calculate it

Question 7

How would you show the parameters on a chromatogram that you need to calculate the number of theoretical plates

Answer 7

Retention time
Width at half peak height
CONE BACK

Question 8

Efficiency and resolution formulas

Answer 8

Come back

Question 9

What is void time