Hitachi CHROMASTER 5160 Instruction Manual page 817

Syringe valve
4
Plunger
wash
Syringe
Wash
fluid1
(8)
Buffer tube
Injection valve
3 2
1
5
Wash
pump
P
3-way solenoid valve
Degassing
unit
Wash
fluid2
Sample injection (INJECT switch)
Switch the injection valve to the INJECT side to load the
sample into the flow path.
Move the syringe to the top dead point after switching the
injection valve.
vl
5
Loop
6
Waste
solution 1
Degassing unit
From Pump
To Column
vd :Dead volume (the instrument inside parameter)
vi :Injection volume (the sample net volume to the flow path)
vl :Lead volume (forward part, cut volume)
vr :Rear volume (rearward part, cut volume)
va :Air volume (the air volume which sample is sandwiched.)
2 - 21
Needle
Injection port
4
vi
3
Waste
2
solution
Wash port
Rack
Sample