Gas Chromatography Flashcards
1
Q
used to separate mixtures of compounds that are volatile or can be made volatile
A
Gas chromatography
2
Q
types of gas chromatography
A
Gas-solid chromatography
gas-liquid chromatography
3
Q
commonly used GC in clinical laboratories
A
GLC
4
Q
What are the carrier gas used in GC
A
nitrogen
helium
argon
5
Q
MS is used as detector
A
yes
6
Q
commonly used to interface a GC or LC with an MS
A
direct infusion
7
Q
most common form of ionization used in GC/MS
A
electron ionization (EI)
8
Q
Two types of ionization for LC/MS
A
electrospray ionization (ESI)
atmospheric pressure chemical ionization (APCI)
9
Q
“soft” ionization techniques that leave the molecular ion largely intact in the source
A
ESI
APCI
10
Q
involves passing the LC effluent through a capillary to which a voltage has been applied
A
ESI
