What is chromatography?

Instrumentasi Kimia II

Quiz
•
Chemistry
•
University
•
Hard
nadhratun naiim Mobarak
Used 6+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A way to see pretty colors
A form of distillation
A laboratory technique used to separate a mixture.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a sample is less polar the choice of the separation column in Gas chromatography should be
polar column
non polar column
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The retention factor is used
to zero the chromatography scale
to retain solvent
to identify unknown compounds in a sample
as a starting tool for chromatography
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does 'ICP-MS' stand for?
Inductively coupled plasma mass spectrometry
Inductively coupled proton mass spectrometry
Intensively coupled plasma mass spectrometry
Interaction coupled proton mass spectrometry
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name an ionization technique which uses a coronal discharge needle to form molecular ions prior to charge transfer with an analyte
Electrospray Ionization
Atmospheric Pressure Photoionization
Matrix –Assisted Laser Desorption Ionization
Atmospheric Pressure Chemical Ionization
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
GC- MS has been developed for which of the following systems?
Packed column
Open tubular column
Capillary column
Porous layer column
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following problems occur when combining gas chromatography and mass spectroscopy?
Difference in operating pressures
Reduction in sensitivity
Direct identification is not possible
It does not permit direct introduction of the effluent
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