FOODS, FLAVORS, & FRAGRANCES
56
Phone: 800-356-1688 or 814-353-1300
HPLC Accessories
LastDropFilter
The flat filter element sits parallel to thebottomof themobilephase reservoir, allowing the filter todraw
98%of themobilephasewithout drawing air into the system.Conventional cylindricalmobilephase fil-
ters begin to draw air into the systemwhen approximately 10% of the solvent remains in the reservoir.
The LastDropFilter allowsmore analyses per batchof mobile phase andhelps reduce hazardouswaste.
22.1mmOD.
Description
qty.
cat.#
price
Last Drop Filter: 2µm
ea.
25314
$62
Last Drop Filter: 10µm
ea.
25315
$62
KontesAll-GlassMicrofiltrationApparatus
47mm filtration apparatus with fritted glass support is recommended for routine filtration of corrosive
liquids and removal of particles fromHPLC solvents. The ground joint connection eliminates phthalate
contamination that can occur when using silicone or neoprene stoppers. The support base has a coarse
porosity glass frit and an integral vacuum connection, located above the drip tip to prevent contamina-
tion of the vacuum linewith filtrate droplets. Each apparatus includes a funnel, an anodized aluminum
clamp, a 47mm fritted glass support base, and a filtration flask.
Description
qty.
cat.#
price
300mL Funnel, 1000mL Flask
ea.
KT953825-0000
$273
500mL Funnel, 2000mL Flask
ea.
KT953835-0000
$340
1000mL Funnel, 4000mL Flask
ea.
KT953845-0000
$380
MobilePhaseDegasser
Dissolved oxygen can cause flow rate instability and increased baseline noise.
Also, it has aquenching effect on fluorescencedetection and increases theback-
groundofUVdetectors.Dissolvedgases canout-gas in theHPLC system, form-
ingbubbles in check valves, at connections, or indetector 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-permeablemembrane encased in a sealed chamber. Traditionally, themembrane has beenmade of
PTFE tubing, but theDegasysUltimateDegasseruses tubing composedof an amorphous fluoropolymer
that is 200 to300 timesmoregaspermeable thanPTFE.This translates into theability touse shorter tub-
ing for removing dissolved gas. This newmaterial also has better tubular burst strength than PTFE. To
prevent cross contamination, each channel on this Degasys unit is individually encased within its own
vacuum chamber.
Description
qty.
cat.#
price
110VMobile PhaseDegasser (4 Channel, 7mL/min./channel)
ea.
25189
$2645
220VMobile PhaseDegasser (4 Channel, 7mL/min./channel)
ea.
25194
$2645
SolventDebubbler
Bubbles in anHPLC system can cause check valvemalfunctions andpump cavitation, seriously affecting
pumpperformance.The debubbler removes bubbles from the fluid streambefore it enters the pump.
Special geometry at the base of the housing allows bubbles entrained in the inlet fluid stream to rise and
be trapped in the reservoir. The gas/liquid interface is easily visible through the translucent wall of the
device.Loosening theairtight cap releases the trappedgas.Thedebubbler is fittedwithabracket anduni-
versal connecting tips.
Description
qty.
cat.#
price
Solvent Debubbler with Bracket
ea.
25014
$57
Specifications:
Residual Oxygen
1
Pressure Loss
1
Internal Volume
Wetted Parts
Max FlowRate
0.9ppm
0.24psi
500µL
Teflon
®
AF
7mL/min./channel
PTFE
ETFE
PPS
1
At a flow rate of 1mL/min.
Mobile Phase: water:methanol
50:50
Flow:
1.0mL/min.
Det.:
UV@ 210nm
DegasysUltimate
Degasserprovides
highlystable
baselines
LC_0196
Ultimate
Degasser
Off
Ultimate
Degasser
On
