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RestekTrademarks:
Press-Tight, Rtx, Uniliner.
Product Listing
Rtx
®
-5AmineColumns
ID df (µm)
Stable to
15m 30m
0.25mm 0.50
340°C 12335
12338
1.00
340°C 12350
12353
0.32mm 1.00
340°C 12351
12354
1.50
340°C 12366
12369
0.53mm 1.00
340°C 12352
12355
3.00
340°C 12382
12385
Base-DeactivatedFusedSilicaGuardColumns
Nominal ID
NominalOD
cat.#
0.25mm
0.37±0.04mm
10000
0.32mm
0.45±0.04mm
10001
0.53mm
0.69±0.05mm
10002
Base-Deactivated Inlet Liners forHPGCs
Description
each
5-pk.
25-pk.
4mmSplit w/wool
20781-211.1 20782-211.5 20783-211.25
Cyclosplitter
®
20706-210.1 20707-210.5
——
4mm Splitless Straight 20772-210.1 20773-210.5
——
2mmGooseneck
20795-210.1 20796-210.5 20797-210.25
4mmGooseneck
20798-210.1 20799-210.5 20800-210.25
Base-Deactivated Inlet Liners forVarianGCs
Description
each
5-pk.
25-pk.
Splitter withwool
20792-211.1 20793-211.5
——
Frit Splitter
20715-210.1 20716-210.5
——
Restek stocks themost requested linerswith base-deactivation for
immediate delivery. However, if youdonot see the liner youneed,
orders canbe placedona custombasis for base-deactivated liners
by adding the appropriate suffix number: each (-210.1), 5-packs (-
210.5), and 25-packs (-210.25). For base-deactivated liners packed
with base-deactivatedwool: each (-211.1), 5-packs (-211.5), and
25-packs (-211.25).
Base-DeactivatedFusedSilicaWool
Quantity
cat.#
10grams
20999
AmineColumnTestMix
1,2-butanediol
0.60mg/mL
pyridine
0.60
decane
0.60
diethylenetriamine
1.20
diethanolamine
1.20
2-nonanol
0.60
2,6-dimethylaniline
0.60
dodecane
0.60
InCH
2
Cl
2
/methanol (50:50), 1mL/ampul.
cat.# 35002, each
each case, response and reproducibility improved using the base-
deactivation as opposed to standard-deactivation. Using the base-
deactivatedwool improves response of basic test probes by
preventing the vaporized sample from contacting the highly-
adsorptive hotmetal inlet disc at the bottom of the injection port,
and by providing a high-surface area, non-adsorptive surface on
which to vaporize the sample.
The inertness of theRtx
®
-5Amine column is obviouswhen
compared to a standard 5% phenyl analytical column (Figure 2).
Two of the active basic compounds—diethylene triamine and
triethanolamine—are completely adsorbed on the standard 5%
phenyl column, yet exhibit good peak shape and response on the
Rtx
®
-5Amine column. To ensure the integrity of theRtx
®
-5
Amine columns, Restek uses a demanding test mixture containing
amines and alcohol-amines designed to confirm column inertness
to basic probes.
Restek’s base-deactivation process is effective for all but highly
acidic compounds, and is specially-designed to ensure a highly
inert GC pathway for basic compounds, from inlet to analytical
column. This deactivation provides a surface that is chemically
compatiblewith basic compounds, thereby greatly reducing
priming, peak tailing, and poor reproducibility associatedwith
basic compound analysis on standard-deactivated surfaces.
Restekoffersadditional deactivationprocedures—
callTechnical Service for details.
