Gas Chromatography General Knowledge Objective Type Questions & Answers | Gas Chromatography General Knowledge Quiz

Questions

21 Which of the following gases is unsuitable for use as a GC carrier gas?

A Nitrogen

B Helium

C Oxygen

D All of the above

Answer: Oxygen

22 Sample injection is considered successful if

A all of the sample in the injector has been added to the column

B the sample is concentrated at the start of the column

C the sample is spread evenly along the column

D the sample is homogenously spread along the column

Answer: the sample is concentrated at the start of the column

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23 Doubling the column’s length increases resolution by a factor of

A (2)0.5

B 2

C 3

D 4

Answer: (2)0.5

24 Which of the following are not used as stationary phases in a GC column?

A Polysiloxanes

B Silica

C Cyclodextrins

D None are used as stationary phases

Answer: Silica

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