Supercritical fluid chromatography
Authored by Chemistry Sophia
Chemistry
University - Professional Development
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Triple point in a phase daigram of the substance indicates
two phases co-exist
three phases co-exist
single phase
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
For SFC, the mobile phase must exist in this state
critical
subcritical
supercritical
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is the best mobile phase for SFC
ethane
carbon dioxide
ammonia
n-hexane
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A substance can reach supercritical state by ______temperature beyond crtical pressure
increasing
decreasing
retaining
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Supercritical fluids have properties ______gases and liquids.
inbetween
same as
totally different than
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Density of supercritical fluids is close to that of a liquid
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
____is generally added as a moderator in SFC
Ethane
carbon dioxide
n-hexane
methanol
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