114
GCCOLUMNS |
METAL (MXT®) CAPILLARYCOLUMNS
Guard/Retention Gap Columns, Tubing Scorer
RestekTubingScorer forMXT®Columns
• Makes aperfect cut every time.
• Easy touse.
• Leaves column entrance perfectly round.
Metal MXT® columns are easy to cut. Scoring wafers can be used, but may leave the
column end irregularly shaped. TheRestek tubing scorer is designed tomake a perfect
cut every time, leaving the column entrance perfectly round.
Enlargedview—scoremark flushwithguide face.
scoremark
guide face
Description
qty.
cat.#
price
RestekTubing Scorer forMXT Columns (0.25-0.53mm ID& 0.5-0.8mmOD)
ea.
20523
$195
Replacement ScoringWheel
ea.
20522
$40
Makeaperfect column cut every time!
Intermediate-PolarityDeactivatedMXT®Guard/RetentionGap
Columns/TransferLines
(passivatedstainlesssteel)
• Useful for awide range of applications.
• Compatiblewithmost common solvents.
• Maximum temperature: 350 °C
Nominal ID
Nominal OD
5-Meter
5-Meter/6-pk.
10-Meter
0.28mm 0.56± 0.025mm 70044
70044-600
70046
0.53mm 0.74± 0.025mm 70045
70045-600
70047
*30- and 60-meter lengths are banded in 5-meter sections.
†Recommendation: Cut 60m guard columns into shorter lengths. Using full lengthmay cause peak distortion.
Diameters greater than 0.10mm are testedwith theGrob test mix to ensure high inertness.
Hydroguard®TreatedMXT®Guard/RetentionGapColumns/TransferLines
(passivatedstainlesssteel)
• Extend analytical column lifetime bypreventingdegradationbyharsh
“steam-cleaning”water injections.
• Maximum temperature: 430 °C.
When transfer lines from purge & trap systems, air monitoring equipment, or other
instruments carry condensedwater vapor, deactivated column tubingquicklybecomes
active because of the creationof free silanol groups.These silanol groups adsorb active
oxygenated compounds such as alcohols anddiols.
Restek chemists have addressed this concern and found a solution—theHydroguard®
deactivation process. A unique deactivation chemistry creates a high-density surface
that is not readily attacked by aggressive hydrolysis. The high-density surface coverage
of the Hydroguard® deactivation layer effectively prevents water vapor from reaching
the fused silica surface beneath.UseHydroguard® tubing for connectingGCs to:
• Headspace analyzers.
• Air analysis equipment and concentrator units.
Nominal ID Nominal OD
5-Meter
10-Meter
30-Meter*
60-Meter*
†
0.28mm 0.56± 0.025mm 70080
70083
70086
70089
0.53mm 0.74± 0.025mm 70081
70084
70087
70090
also
available
Columnconnectorkits&ferrules
Seepage292.
MXT®guard
column
MXT® low-dead-volume
connector
MXT® analytical
column
MXT®guardcolumnsare tested
for inertnessandbleed.
ConnectMXT®columnsusingan
MXT®Low-Dead-VolumeConnector!
Website :
E-mail :
TelNo : 03 9762 2034 . . . inAUSTRALIA
Mar 2011
