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MCQ on Gas chromatography: Page-2

Which of the following carrier gases are generated at on-site in GC
Nitrogen

(A) R,S

(B) Q,S

(C) P,Q

(D) Q,R

The injector used for thermally labile compounds is

(A) Head space analysis

(B) Cold-on column injection

(C) Temperature programming

(D) All of the above

The partition coefficient of the analyte depends on
Nature of the carrier gas

(A) P,S

(B) Q,S

(C) P,R

(D) Q,R

Compression factor of the carrier gas is defined as

(A) u / u0

(B) u 0 / u

(C) u * u 0

(D) u - u 0

Which of the following stationary phase is used for purifying racemic mixtures
Polyethylen glycols

(A) P

(B) Q

(C) R

(D) S