(4) Wash of the needle outer wall with the wash fluid1
The syringe aspirates one-half of the air volume (:va/2) while
needle is moving to the wash port.
Deliver the wash fluid1 via the wash pump to wash the needle
outer wall.
Buffer tube
Injection valve
Syringe valve
Syringe
Wash
pump
5
1
3
2
4
Plunger
wash
From Pump To Column
Injection port
5
4
3
2
1
6
Waste
solution
Loop
Waste
solution
Wash port
Sample
Rack
Wash
fluid2
Wash
fluid1
P
Needle
va/2
va/2
Degassing
unit
vd :Dead volume (the instrument inside parameter)
:Injection volume (the sample net volume to the flow path)
:Lead volume (forward part, cut volume)
:Rear volume (rearward part, cut volume)
:Air volume (the air volume which sample is sandwiched.)
vi
vl
vr
va
2 - 17
Summary of Contents for CHROMASTER 5160
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