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