
Gas Chromatography Techniques and Principles

Interactive Video
•
Chemistry, Science, Physics
•
10th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two main phases required in gas liquid chromatography?
Solid and liquid phases
Aqueous and organic phases
Stationary and mobile phases
Gas and liquid phases
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What serves as the stationary phase in a gas chromatograph?
A solid support
A liquid support on a column
An inert gas
A high-pressure pump
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which gas is commonly used as the mobile phase in gas chromatography?
Oxygen
Helium
Carbon dioxide
Nitrogen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the injection port in gas chromatography?
To detect compounds
To separate components
To cool the column
To introduce the sample
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much of the sample solution is typically injected into the gas chromatograph?
5 microliters
20 microliters
10 microliters
1 microliter
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to wipe off the outside of the syringe before injection?
To prevent contamination
To cool the syringe
To ensure accurate measurement
To avoid excess sample on the needle
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you check before starting the injection process?
The readiness of the instrument
The volume of the sample
The temperature of the column
The type of detector used
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