EZ No-Vent™ Connector
800-356-1688
•
•
21
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3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
min.
2
1
3
4
5
6
7
1stColumn, EquilibratedSystem
1. dichlorodifluoromethane
2. 1,2-dichlorotetrafluoroethene (Freon
®
114)
3. chloromethane
4. vinyl chloride
5. bromomethane
6. chloroethane
7. trichlorofluoromethane
Rtx
®
-624 60m, 0.25mm ID, 1.4µm (cat# 10969), column direct to source.
Acquired76minutesafter installing2ndcolumn
Rtx
®
-624 60m, 0.25mm ID, 1.4µm (cat# 10969) using EZNo-Vent
™
.
Sample:
VolatileGasMix 502.2
CalibrationMix#1 (gases)
cat# 30042
Inj.:
Purge&Trap
GC
Agilent 6890
Inj. temp.:
300°C
Carrier gas: helium, constant flow
Flow rate:
1.0mL/min.
Oven temp.:
60°C isothermal
Det:
Agilent 5973GC/MS
Transfer line temp.: 280°C
Scan range:
35-550 amu
Tune
BFB
Ionization:
EI
GC_EV00659a
GC_EV00659b
EZNo-Vent™GCColumn-MassSpectrometerConnector
• ChangeGC/MS columns inminuteswithout venting—100µm transfer line throttles vacuum and
prevents venting.
• Easy to install andmaintain—no special tools or plumbing required.
• Gold-platedbody for inertness.
• Deactivated transfer line keeps analytes focused; high-temperature polyimide ferrules eliminate leaks
at the problematic transfer line fitting.
• Lower cost thanother“no-vent”fittings.
• Available forAgilentGCswith5971/5972or 5973GC/MS.
We designed the EZ No-Vent™ GC column-
mass spectrometer connector to be simple and
easy to use. A critical orifice in the EZ No-
Vent™ connector minimizes the amount of
oxygenallowed into theMS source, eliminating
theneed forpurge gas and enablingyou to skip
the lengthy vent and pump-down cycle other-
wise requiredwhenyoumakeacolumnchange.
This can save nearly a day of downtime with
each column change. The EZ No-Vent™ con-
nector easily attaches to theMS sourcewithout
special tools or extra plumbing. Figure 1 shows
the internal structure of the connector.
Change columns in
minutes—without
venting!
GC/MS
Interface
Transfer
Line
Ferrule
EZNo-Vent
™
Connector
Capillary
Ferrule
Capillary
Column
Transfer
Line
Capillary
Nut
Figure1
TheEZNo-Vent™
connector incorporates a laser
machinedorifice for optimal flow
through the fitting. Coupledwith
the100μm ID transfer line, it
minimizes theamount of oxygen
entering theMS,whicheliminates
theneed for purgegases.
Laserdrilled to
100μm ID
Figure2
Sharp, symmetricpeaks for gases show theEZNo-Vent™ connector doesnot adddeadvolumeand
allows rapid column changes.
Kit installs easily,
without special
toolsor plumbing.
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Description
qty.
cat.#
price
EZNo-Vent
™
Connector Kit for Agilent 5971/5972 and 5973GC/MS
Kit includes: EZNo-Vent
™
Connector, two 0.4mm ID ferrules for capillary column, two 0.4mm ID
ferrules for transfer line, 100µm deactivated transfer line (3 ft.), column plug, column nut.
kit
21323
$185
Replacement ferrules for connecting capillary column to EZNo-Vent
™
Connector:
0.4mm ID (Polyimide)
2-pk.
21015
$30
0.5mm ID (Polyimide)
2-pk.
21016
$30
Replacement ferrules for connecting transfer line to EZNo-Vent
™
Connector: 0.4mm ID
2-pk.
21043
$27
Replacement 100µm deactivated transfer line
3 ft.
21018
$22
Replacement EZNo-Vent
™
ColumnNut
5-pk.
21900
$32
Replacement EZNo-Vent
™
Plug
2-pk.
21915
$38
Open-EndWrenches (
1
/
4
" x
5
/
16
")
2-pk.
20110
$27
