Exam Practice

Question 1

What combination would reversed phase HPLC employ

Answer 1

Non-polar stationary phase with a polar mobile phase

Question 2

Which of the following is a detector for HPLC

Answer 2

UV-VIS

Question 3

A normal HPLC would employ ?

Answer 3

Polar stationary phase and non-polar/less polar mobile phase

Question 4

What does TLC stand for

Answer 4

Thin layer chromatography

Question 5

In TLC how do you calculate Rf value

Answer 5

Distance moved by the solute/ distance the solvent moves

Question 6

In gas chromatography the oven is used for what?

Answer 6

Heat up the column

Question 7

Which of the following is not an example of a type of derivatising reaction:
Glucorinadation
silylation
acylation
Acetylation

Answer 7

Glucorinadation

Question 8

What does SPE stand for

Answer 8

Solid phase extraction

Question 9

What does LLE stand for

Answer 9

Liquid liquid extraction

Question 10

Which group of electrons in an atom are involved in the process of atomic spectroscopy and X-ray fluorescence spectroscopy

Answer 10

Core electrons such as those in K-shell and L-shell