Unformatted text preview: Each type of system has its own advantages and
Is the solvent reservoir limited?
Does it produce pressure pulses?
Can a gradient be produced? solvent
gas inlet d
baffle e a - syringe
b - seal
c - gearing d - motor
e - fill system Another non-pulsating system with a limited reservoir.
Stepper motor/gear system allows for very fine flow
control. One of the most common type of systems. g
a - motor
b - gear
c - seal
d - piston
e - solvent in
f - check valves
g - solvent out d
f b to column c solvent c a Unlimited reservoir system but expensive.
Another problem is that it produces variable
pressure - must reverse stroke to refill. a
e pump fill ...
View Full Document
- Fall '08
- Fluid Dynamics, gas inlet, solvent reservoir, Unlimited reservoir, pressure pulses, Stepper motor/gear