gas liquid chromatography

Question 1

instances where substances cant be distinguished

Answer 1

Some compounds have similar retention times so will not be distinguished

Question 2

use of Gas-liquid chromatography

Answer 2

Gas-liquid chromatography can be used to separate mixtures of volatile liquids

Question 3

mobile phase

Answer 3

is a gas such as helium

Question 4

stationary phase

Answer 4

is a high boiling point liquid absorbed onto a solid

Question 5

what can be used to identify the substance

Answer 5

retention time.

Question 6

retention time.

Answer 6

The time taken for a particular compound to travel from the injection of thesample to where it leaves the column tothedetector

Question 7

the significance of the area under each peak

Answer 7

will be proportional to the abundance of that component

Question 8

what does the number of peaks tell us?

Answer 8

the number of peaks

Question 9

use of gc

Answer 9

GC-MS is used in analysis, in forensics, environmental analysis, airport security andspaceprobes.