GC CONSUMABLES – 1/16″ FERRULES AND 1/8″ REDUCING FERRULES

Quadrex offers a complete range of graphite and graphite/TL-Polyimide™ ferrules for capillary column installation which offer a reliable gas tight seal and are specifically designed for use in your GC. When choosing the ferrules you need, remember that there really isn’t a “standard” ferrule or GC fitting. Most instrument manufacturers and ferrule suppliers have their own particular designs and dimensions for these components, so be sure you’re selecting the ferrules which were designed for your particular GC. This will insure that your column installation will be leak-free.

GRAPHITE FERRULES FOR 1/16″ FITTINGS

Graphite ferrules are highly suitable for fused silica capillary column installation and are preferred for high temperature GC applications. Upper temperature is 450°C. The pliability of this type of ferrule allows them to be used in any GC fitting.

SHORT-STYLE GRAPHITE FERRULES FOR AGILENT GCs

Agilent’s standard injector and detector fittings are such that they require a shortened ferrule design. The graphite ferrules below are specifically for Agilent GCs.

GRAPHITE/TL-POLYIMIDE FERRULES FOR 1/16″ FITTINGS

We now have the direct molded-to-size ferrules made with graphite/TL-Polyimide. These ferrules are superior to graphite-Vespel™ ferrules. They have superior thermal properties, seal easier (they are a little softer with a Rockwell hardness of approx. 75 -vs- 95 to 102 for Vespel™), don’t off gas, and have a much lower coefficient of thermal expansion.

GRAPHITE/TL-POLYIMIDE FERRULES FOR AGILENT GCs

Agilent’s standard injector and detector fittings are such that they require a shortened ferrule design. The graphite/TL-Polyimide ferrules below are specifically for Agilent GCs.

GRAPHITE REDUCING FERRULES FOR 1/8″ FITTINGS

Graphite ferrules are highly suitable for fused silica capillary column installation and are preferred for high temperature GC applications. Upper temperature is 450°C. The pliability of this type of ferrule allows them to be used in any GC fitting.

GRAPHITE-VESPEL™ REDUCING FERRULES FOR 1/8″ FITTINGS

These Graphite-Vespel™ ferrules are suitable for fused silica capillary column installations in larger 1/8″ fittings.

* VESPEL is a trademark of the DuPont Corporation.

FERRULE REMOVAL TOOLS

This is a useful set of tools which remove ferrules that have become imbedded in nuts or fittings. The spiral tapered tip screws into the ferrule easily and grabs tightly on the way out. Useful on ferrules with 0.4mm to 0.8mm I.D.’s.

GC CONSUMABLES – INJECTOR PORT LINERS

Capillary injector port liners are a critical part of the capillary column system. They provide a clean, non-adsorptive injection zone which should be replaced regularly to avoid contamination from non-volatiles which can be deposited onto the capillary column. All injection port liners produced from precision borosilicate glass (quartz where noted) and are polysiloxane deactivated and ready for use. They are manufactured to exacting tolerances and come in various configurations for many popular GCs. Guaranteed inert for phenols, organic acids and bases.

• INJECTOR LINERS FOR AGILENT GCs
• INJECTOR LINERS FOR PERKIN ELMER GCs
• INJECTOR LINERS FOR VARIAN GCs

SEPTA

Advances in GC techniques can lead to higher injection port temperatures. At elevated temperatures, septa can stick to the injection port hardware or harden causing leaks which can lead to poor reproducibility. Septa coring is also a problem which results in debris entering the injector liner and possibly even the capillary column itself. Today’s septa technology provides outstanding mechanical properties for repeated manual or autosampler injections, and chemical properties which give ideal low bleed characteristics for elevated temperature use.

MARATHON SEPTA™

The advanced Marathon™ Septa have been specifically developed for use with autosamplers for long life. These septa typically achieve 400 injections or more without failure when used with dome-tipped needles (Agilent-style) and an autosampler or needle guide. Some of the Marathon™ Septa are available with the Center-Guide™ feature which are pre-pierced to eliminate coring. The Marathon™ Septa are 3mm thick and have a maximum temperature of 400°C. 50 per pack.

SEPTA BTO™

Septa BTO™ is Bleed and Temperature Optimized for today’s demanding GC and GC/MS applications. They have been specifically formulated to retain their softness and ‘pierce-ability’ with low bleed and minimum port adhesion at elevated temperatures. Maximum temperature is 400°C. 50 per pack.

ADVANCED GREEN 3™

Advanced Green 3™ Septa was specifically formulated to combine significantly longer injection life, low bleed, and low injection port adhesion. Advanced Green 3™ Septa are 3mm thick and have a maximum temperature of 400°C. 50 per pack.

CARRIER GAS TRAPS AND FILTERS

GAS PURIFIERS – FROM CRS

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• Advanced Filter System:  All NEW from CRS, this 2-part Advanced Filter System includes a small stainless steel manifold and a high capacity filter cartridge.
• Oxygen Traps:  Oxygen is the leading cause of column degradation. These oxygen traps use a copper-based catalyst to remove oxygen to sub-ppm levels.
• Moisture Traps:  Water which can be present in the carrier gas stream can hydrolyze common silanized supports which leads to stationary phase degradation.
• Moisture/Oil/Dust Traps:  These traps are ideal for general purpose filtering such as fuel gases for FID’s.
• Hydrocarbon Traps:  These traps use activated charcoal to remove all hydrocarbons except methane. Some hydrocarbon traps are available with Indicating Drierite™ for simultaneous water removal.
• Specialty Traps:  The Split Vent Trap keeps detector emissions from contaminating your laboratory air.

ADVANCED FILTER SYSTEM (AFS)

The Advanced Filter System (AFS) removes impurities such as oxygen, water and hydrocarbons from inert gases and hydrogen to low ppb levels. Proper installation of the AFS reduces impurities, increases sensitivity levels and improves performance.

The two part system includes a small stainless steel manifold and a high capacity filter cartridge. It can be attached to a laboratory wall or bench with brackets included. Each connection in the AFS is made with two fluoro-elastomer seals. The polycarbonate shield that surrounds the glass indicator section of the filter is sealed, so the gas flow is secure even if the glass is broken.

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• Excellent capacity and efficiency in one cartridge
• All metal and glass construction
• Visible indicators for both oxygen and water
• Double seal construction for safety, especially when using hydrogen gas
• Check valves protect gas lines during cartridge replacement
• Recommended maximum flow rate is 1 L/min. at 200 psi maximum operating pressure
• Easy cartridge replacement with twist on/off assembly knob
• Expected life of =/> one year in typical use with up to 4 GCs

Z-PURE™* INDICATING OXYGEN TRAP

This is an improved, compact indicating filter for high-efficiency oxygen removal, suitable for use with chromatography carrier gas streams. It removes oxygen to low-ppb levels, with an indicator that changes color from green to gray when adsorption capacity is depleted.

• Inner heavy walled glass tube encased in a hard plastic tube for added safety and strength
• Redundant three part inner seal for leak-free operation
• Maximum fow rate of 150ml/min., maximum pressure is 100psi
• Can be regenerated – no need to dispose
• Approx. dimensions: 3.5 x 26cm including the fittings
• Brass fittings (also available in stainless steel)

MODEL 1000 HIGH CAPACITY OXYGEN TRAP

The Model 1000 high capacity oxygen trap is specifically designed for the bulk removal of oxygen for capillary use, especially with ECD and GC-MS systems.

NOTE: The active catalyst in this high capacity oxygen trap becomes hot when exposed to air. According, this Trap MUST ship as HAZARDOUS GOODS.

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• Over 2.5 liter O₂ capacity from 500cc’s of adsorbent
• Removes O₂ to less than 70ppb oxygen levels at the outlet
• Nickel plated steel construction rated to 1000psig
• Maximum flow of 1L/min recommended
• Can be regenerated (instructions are included)
• Delivered filled with high purity helium – ready for use
• Approx. dimensions: 5 x 37cm

We recommend using the Indicating Oxygen Trap (at top) downstream from this Model 1000 trap to show when its capacity is depleted.

Z-PURE™ GLASS INDICATING MOISTURE TRAP

This is an advanced-design gas filter for applications requiring high-efficiency moisture removal with the benefit of a depletion indicator. Up to 6 grams water is removed to low-ppb levels. The adsorbing materials are Molecular Sieve 5A and cobalt-free CoFree(TM) indicator, held in a sturdy glass tube. The gas to be purified contacts only glass, metal and the adsorbents.

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• Molecular Sieve 5A and Indicating CoFree Indicating adsorbing materials
• Inner glass tube encased in plastic shell with threaded aluminum end caps – makes it easy to disassemble and reactivate
• Stainless steel frits with nickel plated end fittings
• For use below 100psig
• Approx. dimensions: 3.2 x 26cm

‘BIG TRAP’ MOISTURE/OIL/DUST TRAP

Improves baseline stability and chromatographic data by trapping moisture, oil, and dust before it reaches your GC. Recommended for the filtration of hydrogen in FID’s.

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• 400cc capacity – requires fewer refills
• Replaceable molecular sieve and indicator
• CoFree™ indicator changes from green to pink at 5% relative humidity to warn of leaks in the gas stream.
• Unique O-ring design allows hand-removal of the cartridge without disconnecting the fittings from the line
• Clear acrylic tube rated to 100 psig
• Approx. dimensions: 6 x 43cm

MODEL 300 HYDROCARBON TRAP

The Model 300 Hydrocarbon Trap removes hydrocarbons from hydrogen and other gases. It contains 500cc’s of pure activated charcoal – more than twice the capacity of other leading hydrocarbon filters -removing all hydrocarbons except methane at room temperature. The all-metal cylinder rated to 1000psig.

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• 500cc capacity
• Highest efficiency is obtained using flow rates below 500 cc/min.
• Frits in each end prevent fines from entering the gas stream.
• Can be regenerated

 SPLIT VENT TRAP

During split injection mode, more than 99% of your sample is vented to the atmosphere. The Split Vent Trap contains 1200 milligrams of pure activated charcoal which captures these volatile contaminants venting from split/splitless injectors. The Split Vent Trap consists of the inner glass adsorbent tube with nickel plated end fittings, clear plastic protective outer sleeve and 1/8″ tube fittings. Each trap comes with three replacement tubes.

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• High capacity – 1200mg of activated charcoal
• Protect your health and the health of your coworkers
• Three replacement cartridges included

* Z-PURE is a trademark of CRS.