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GC ACCESSORIES |
INSTRUMENT SUPPLIES
Supplies for Agilent GCs: GC-MS
EZ No-Vent® GC Column-Mass Spectrometer Connector
for Agilent GCs with 5971/5972, 5973, or 5975 GC-MS
• Change GC-MS columns in minutes without venting—
100 µm transfer line maintains vacuum and eliminates the
need to vent.
• Easy to install and maintain—no special tools or plumbing
required.
• Gold-plated body for inertness.
• High-temperature polyimide ferrules eliminate leaks at the
problematic transfer line fitting.
• Lower cost than other “no-vent” fittings.
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 oxygen al-
lowed into the MS source, eliminating the need for purge gas as
is required for other manufacturers’ vent systems. This enables
you to skip the lengthy vent and pump-down cycle otherwise
required when you make a column change, saving nearly a day
of down-time with each column change. The EZ No-Vent® con-
nector easily attaches to the MS source without special tools or
extra plumbing.
Figure 2:
Sharp, symmetric peaks for gases show the EZ No-Vent®
connector does not add dead volume and allows rapid column
changes.
Kit installs easily,
without special
tools or plumbing.
Column
Rtx®-624, 60 m, 0.25 mm ID,
1.40 µm (cat.# 10969)
Sample
502.2 Calibration mix #1
(gases) (cat.# 30042)
Injection
purge and trap split
Inj. Temp.:
300 °C
Oven
Oven Temp.:
60 °C
Carrier Gas
He, constant flow
Flow Rate:
1.0 mL/min
Detector
Agilent 5973 GC-MS
Transfer Line
Temp.:
280 °C
Analyzer Type: Quadrupole
Tune Type:
BFB
Ionization
Mode:
EI
Scan Range:
35-550 amu
Instrument
Agilent/HP6890 GC
Peaks
1. Dichlorodifluoromethane
2. 1,2-dichlorotetrafluoroethene (Freon® 114)
3. Chloromethane
4. Vinyl chloride
5. Bromomethane
6. Chloroethane
7. Trichlorofluoromethane
Change columns in
minutes—without
venting!
Figure 1:
The EZ No-Vent®
connector incorporates a
laser-machined orifice for op-
timal flow through the fitting.
Coupled with the 100 µm ID
transfer line, it minimizes the
amount of oxygen entering
the MS, which eliminates the
need for purge gases as in
other manufacturers’ systems.
GC-MS
Interface
Transfer
Line
Transfer
Line
Ferrule
EZ No-Vent®
Connector
Capillary
Ferrule
Capillary
Column
Capillary
Nut
Laser drilled
to 100 µm ID
Restek
innovation!
1st Column, Equilibrated System
Rtx
®
-624, 60 m, 0.25 mm ID, 1.4 µm (cat.# 10969),
column direct to source.
Acquired 76 Minutes After Installing 2nd Column
Rtx
®
-624, 60 m, 0.25 mm ID, 1.4 µm (cat.# 10969)
using EZ No-Vent® connector.
GC_EV00659a
GC_EV00659b
Description
qty.
cat.#
price
EZ No-Vent Connector Kit
Includes: EZ No-Vent Connector, two 0.4 mm ID adaptor
ferrules for capillary column, two 0.4 mm ID ferrules for
transfer line, 100 µm deactivated transfer line (3 ft.),
column plug, column nut
kit
21323
Replacement ferrules for connecting capillary column to
EZ No-Vent Connector:
0.30≤0.40 mm Tubing OD (Virgin Polyimide)
2-pk.
21015
0.40≤0.50 mm Tubing OD (Virgin Polyimide)
2-pk.
21016
Replacement Ferrules (polyimide) for connecting transfer
line to EZ No-Vent connector: 0.4 mm ID
2-pk.
21043
Replacement 100 µm Deactivated Transfer Line
3 ft 21018
Replacement EZ No-Vent Column Nut
20-pk.
23100
Replacement EZ No-Vent Plug
5-pk.
23112
Open-End Wrenches,
1
/
4
" x
5
/
16
"
2-pk.
20110