Rtx015-16-628

www.restek.com

251

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:

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,

" x

2-pk.

20110