FUSED SILICA CAPILLARY COLUMNS

Quadrex fused silica columns are produced with the industry standard polyimide outer coating (390°C maximum temperature) for most general GC applications.  Columns with high temperature polyimide coatings, for applications >400°C, are available upon request.

Each stationary phase used in our coating processes is synthesized and cleaned in-house to insure column to column reproducibility. All Quadrex phases are bonded to the silica substrate and cross-linked. Our stringent QA / QC program governs the production of all in-house phases which results in accurate selectivity, reproducibility, and outstanding thermal stability.

Every Quadrex fused silica capillary column is pre-conditioned, QC tested, and shipped with a clear and easy to read Capillary Column Test Data Sheet. This gives you all of the pertinent information regarding the columns' configuration, test operating conditions, and maximum programmed and isothermal operating temperature limits. Column efficiency, activity and film thickness are easily evaluated using an appropriately designed test mixture. We maintain a computer data base of all column data in order to assure you of column-to-column reproducibility.

The links below will bring you to pages on the specific phase types and configurations offered on our GC columns:

PHASE DESIGNATION CHEMICAL COMPOSITION GENERAL AREA OF USE
NON-POLAR Order Online


007-1


Dimethylpolysiloxane
boiling point column, general purpose: hydrocarbons, solvents, waxes, pharmaceuticals, flavors, etc.


007-5

(5% Phenyl) Methylpolysiloxane
boiling point column, general purpose: aromatics, hydrocarbons, solvents, waxes, pharmaceuticals, flavors, etc.

007-5MS

Silphenylene Polysiloxane
boiling point column, low bleed characteristics for GC/MS use: hydrocarbons, solvents, waxes, etc.,
SLIGHTLY POLAR Order Online
007-10
007-20
(10% & 20% Phenyl)
Methylpolysiloxanes
volatiles

007-502
007-608
007-624

Cyanopropylphenyl Methylpolysiloxanes
EPA Method applications: volatiles and semi-volatiles in drinking water, ground water, pesticides, herbicides, etc.
007-1301 (6% Cyanopropylphenyl)
Methylpolysiloxane
PCB's, pesticides, herbicides
MID-POLARITY Order Online
007-35 (35% Phenyl)
Methylpolysiloxane
PCB's, pesticides, herbicides, amines
007-1701 (14% Cyanopropylphenyl)
Methylpolysiloxane
PCB's, pesticides, alcohols, pharmaceuticals
007-17 (50% Phenyl)
Methylpolysiloxane
pesticides, phenols, pharmaceuticals, FAMEs. etc
007-65HT (65% Phenyl)
Methylpolysiloxane
triglycerides, biodiesel
POLAR Order Online
007-225 (50% Cyanopropylphenyl)
Methylpolysiloxane
carbohydrates, alditol acetates, FAMEs

007-CW
BTR-CW

Polyethylene Glycol (PEG)
alcohols, free acids, essential oils, solvents, aromatics, BTEX, flavors and fragrances
007-FFAP Nitroterephthalic acid-modified Polyethylene Glycol (PEG) alcohols, aldehydes, ketones, acids
007-23 (78% Cyanopropyl)
Methylpolysiloxane
cis and trans FAME isomers, dioxin analyses
PLOT (Porous Layer Open Tubular) Order Online

PLT-5A
PLT-Q
PLT-AL2O3
Molecular Sieve 5A permanent gases
Porous Divinylbenzene polymer light hydrocarbons, gases
Alumina/KCL light hydrocarbons

 

Hot Tip HOT TIPS:

ALWAYS SEAL YOUR COLUMN UNDER AN INERT GAS WHEN NOT IN USE. FLAME SEALING IS THE BEST. SECURING THE ENDS WITH A SEPTA IS ALSO SUFFICIENT FOR SHORT TERM STORAGE.

 

USING CARRIER GAS FILTERS WILL ENSURE PURITY OF THE GASES RUNNING THROUGH YOUR COLUMN.

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