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HPLC ACCESSORIES
Mobi le Phase Accessor ies
Degasys Ultimate Degasser provides highly stable
baselines
Mobile Phase Degasser
Dissolved oxygen can cause flow rate instability and increased
baseline noise. Also, it has a quenching effect on fluorescence
detection and increases the background of UV detectors.
Dissolved gases can out-gas in the HPLC system, forming bub-
bles in check valves, at connections, or in detector flow cells.
In-line vacuum degassing is more effective at removing dissolved
gas from mobile phases than sonication or helium sparging. In-
line degassers work by withdrawing gas across a gas-permeable
membrane encased in a sealed chamber. Traditionally, the mem-
brane has been made of PTFE tubing, but the Degasys Ultimate
Degasser uses tubing composed of an amorphous fluoropolymer
that is 200 to 300 times more gas permeable than PTFE. This
translates into the ability to use shorter tubing for removing dis-
solved gas. This new material also has better tubular burst
strength than PTFE. To prevent cross contamination, each chan-
nel on this Degasys unit is individually encased within its own
vacuum chamber.
Residual Oxygen
1
0.9ppm
Pressure Loss
1
0.24psi (1.65kPa)
Internal Volume 500µL
1
At a flow rate of 1mL/min.
Wetted Parts
Teflon AF, PTFE,
ETFE, PPS
Max Flow Rate 7mL/min./channel
To prevent system damage, do not use the Degasys system with solutions
containing TFA at concentrations greater than 5%.
Mobile Phase: water:methanol
50:50
Flow:
1.0mL/min.
Det.:
UV @ 210nm
LC_0196
Ultimate
Degasser Off
Ultimate
Degasser On
Specifications:
Description
Voltage qty.
cat.#
price
Mobile Phase Degasser
(4 Channel, 7mL/min./channel)
110V ea.
25189
Mobile Phase Degasser
(4 Channel, 7mL/min./channel)
220V ea.
25194
25189
Protect your column and system
performance with UltraShield
and UltraLine UHPLC Filters
A cost-effective way to extend the lifetime of any
UHPLC column without sacrificing UHPLC performance
See page 195 for details.
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
