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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 ...
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This note was uploaded on 01/07/2012 for the course CHEM 290 taught by Professor Harvey during the Fall '08 term at SUNY Stony Brook.
- Fall '08