Gas Chromatography

Question 1

a chromatographic technique that can be used to separate volatile organic compounds.

Answer 1

Gas Chromatography

Question 2

Types of Gas Chromatography

Answer 2

• Gas-solid Chromatography
• Gas-liquid Chromatography

Question 3

Is based upon a solid stationary phase on which retention of analytes is the consequence of physical adsorption.

Answer 3

Gas-solid Chromatography

Question 4

Is usefulfor separating ions or molecules that are dissolved in a solvent

Answer 4

Gas-liquid Chromatography

Question 5

Analytical Components of GC

Answer 5

• InjectionPort
• Carrier Gas
• Gas flow regulatpr
• Column
• Oven
• Detector
• Computer/Data analysis

Question 6

This is where the sample is introduced into the GC. It is heated to vaporize the sample.

Answer 6

Injection Port

Question 7

an inert gas that flows through the column and carries the vaporized sample.

Answer 7

Carrier Gas

Question 8

device that controls the flow rate of the carrier gas

Answer 8

Gas flow regulator

Question 9

• Long, narrow tube that is packed with a stationary phase.
• This is where vaporized sample travels through where the components interact with the stationary phase to different extents.

Answer 9

Column

Question 10

a chamber that houses the chromatographic column

Answer 10

Oven

Question 11

Located at the end of the column. It senses the components of the sample as they escape from the column.

Answer 11

Detector

Question 12

used to acquire and process the data from the detector

Answer 12

Computer/Data analysis

Question 13

Data from detector is displayed as a

Answer 13

Chromatogram

Question 14

a graph with time (or flow) on the x-axis and detector signal intensity on the y- axis.

Answer 14

Computer/Data analysis