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:B
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