○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
○
3
Stabilwax
®
Columns for Solvents, FAMEs, Xylene
Isomers, and Flavors
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
· Increased column lifetime.
· Remarkably low bleed.
· Solvent rinsable.
Stabilwax
®
columns are durable, all-purpose PEG columns. FAMEs, flavors,
acids, essential oils, amines, solvents, xylene isomers,BTEX, andEPAMethod
603 compounds (acrolein and acrylonitrile) are all easily analyzed on these
rugged columns.
Restek’s research chemists developed a polar-deactivated surface that tightly
binds theCarbowax
®
polymer, thus increasing the polymer’s thermal stability
overcompetitivecolumns.Next, they incorporatedantioxidant features intothe
polymer backbone to resist damage from an influx of trace oxygen, themost
common cause of Carbowax
®
column failure. Finally, they fine-tuned the
bondingmechanisms to result inacolumn that canbe rejuvenatedbysolvent-
washing.
Benefits of LowBleed
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
The lowbleedat higher temperatures that isprovidedby aStabilwax
®
column
ensuresaccurate identificationandquantitationofhigher-boilingcomponents,
minimaldetectorcontamination, andextendedcolumn lifetime.TheStabilwax
®
column is thermally stable to 250°C. Only aminimal bleed level is evident at
this temperature. In fact, compared to similar PEGs from othermanufactur-
ers, the Stabilwax
®
exhibits the
lowest
bleed profile at 250°C (
Figure 1
).
Figure 1
Stabilwax
®
ColumnExhibits Lowest Bleed Profile at 250°C
30
min. 28
17.500pA
30
min. 28
26.938pA
Competitor B
Competitor A
30m, 0.25mm ID, 0.50µm
Oven temp.:
40°C to 175°C@6°C/min. to 250°C@15°C/min. (hold5min.);
Inj. & det. temp.:
250°C;
Carrier gas:
hydrogen
;
Linear velocity:
45cm/sec. set @40°C;
FID sensitivity:
8 x 10
-11
AFS
30
min. 28
Stabilwax
®
(cat.#10638)
13.1pA
visit Restek on-line
○ ○ ○ ○
or call
800-356-1688
ext.4
for technical
assistance.
