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GCCOLUMNS |
PACKED/MICROPACKEDCOLUMNS
Bonded Packed Columns
BondedStationaryPhases
We combined our stationary phase synthesis experience with our unique Silcoport®
packing deactivationprocess to create bondedphase packings that provide longer life-
times, lower bleed, and shorter conditioning times.
Bonded methyl silicone phases (Rtx®-1 and Rtx®-5) and bonded Carbowax® phase
(Stabilwax®) are completely cross-linked on Silcoport® packing. We have evaluated
Rtx®-1 and Rtx®-5 bonded packed column phases side-by-side with nonbonded
phases of comparable polarity; the bondedphases last longer than the equivalent non-
bonded packing materials. Table I shows that retention times on an Rtx®-1 bonded
packed column arehighly repeatable after only 30minutes of conditioning.
Table I
Retentiondata shows theperfect reproducibilityof thebondedphase
packedcolumnswith respect to retention times.
Retention Time
Hydrocarbon
Min.
Max.
Mean
Stand. Dev.
C5
0.241
0.243
0.242
0.001
C6
0.493
0.497
0.495
0.002
C10
5.746
5.765
5.752
0.005
C20
18.482
18.491
18.486
0.004
C28
25.093
25.103
25.098
0.004
C40
32.160
32.171
32.166
0.004
C44
34.316
34.328
34.326
0.007
Bondedphasepackings
decrease conditioning times
andbleed, and increase
column lifetime.
Silcosmooth® tubinghas aSiltek® treated
surface,which ismore inert thanglass.
Who sayspacked columns areold technology?Not Restek!
By combining flexibleSilcoSmooth® tubingwith low-bleedbondedphases,wehavemade
themost significant improvements inpacked column technology inmore than25years!
Themost complete
lineof packing
materials available.
Columns available in
0.53, 0.75, 1, 2, 3.2, &5.2mm ID.
Columns canbe configured
for all GCmodels.
n= 9 columns
0.53mm IDmicropacked
columnsnowavailable.
See
page132
.
NEW!
Website :
E-mail :
TelNo : 03 9762 2034 . . . inAUSTRALIA
Mar 2011
