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Quadrex
fused silica columns are produced with the industry
standard polyimide outer coating (390°C maximum
temperature) for most general GC applications or with an
aluminum-clad outer coating (440°C maximum temperature)
for high temperature applications such as crude oils,
waxes, and triglycerides.
All polyimide-clad fused
silica columns have the prefix designation of '007-'
while all aluminum-clad fused silica columns are
designated with a '400-' prefix.
Each
stationary phase is synthesized and cleaned in-house to
insure column to column reproducibility. All Quadrex
phases are bonded to the silica substrate and
cross-linked. A 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
temperatures. 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.
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PHASE DESIGNATION |
CHEMICAL COMPOSITION |
GENERAL AREA OF USE |
NON-POLAR
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007-1 |
Dimethylpolysiloxane |
boiling point column, general purpose:
hydrocarbons, solvents, waxes, pharmaceuticals,
flavors, etc. |
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400-1HT |
Dimethylpolysiloxane-HT |
aluminum-clad fused silica, boiling point
column for high molecular weight-high
temperature applications: crude oils, waxes (C80
and above) |
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007-5 |
(5% Phenyl) Methylpolysiloxane |
boiling point column, general purpose:
aromatics, hydrocarbons, solvents, waxes,
pharmaceuticals, flavors, etc. |
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400-5HT |
(5% Phenyl) Methylpolysiloxane-HT |
aluminum-clad fused silica, boiling point
column for high molecular weight-high
temperature applications: crude oils, waxes (C80
and above) |
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007-5MS |
Silphenylene
Polysiloxane |
boiling point
column, low bleed characteristics for GC/MS use:
hydrocarbons, solvents, waxes, etc.,
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SLIGHTLY POLAR
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007-10
007-20 |
(10% & 20% Phenyl)
Methylpolysiloxanes |
volatiles |
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007-502
007-608
007-624 |
Cyanopropylphenyl
Methylpolysiloxanes |
EPA
Method applications: volatiles and
semi-volatiles in drinking water, ground water,
pesticides, herbicides, etc. |
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007-1301 |
(6%
Cyanopropylphenyl)
Methylpolysiloxane |
PCB's, pesticides, herbicides |
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MID-POLARITY
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007-35 |
(35% Phenyl)
Methylpolysiloxane |
PCB's, pesticides, herbicides, amines |
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007-1701 |
(14%
Cyanopropylphenyl)
Methylpolysiloxane |
PCB's, pesticides, alcohols, pharmaceuticals |
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007-17 |
(50% Phenyl)
Methylpolysiloxane |
pesticides, phenols, pharmaceuticals, FAMEs. etc |
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007-65HT
400-65HT |
(65% Phenyl)
Methylpolysiloxane |
triglycerides, biodiesel |
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POLAR
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007-225 |
(50%
Cyanopropylphenyl)
Methylpolysiloxane |
carbohydrates, alditol acetates, FAMEs |
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007-CW
BTR-CW |
Polyethylene
Glycol (PEG) |
alcohols, free acids, essential oils, solvents,
aromatics, BTEX, flavors and fragrances |
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007-FFAP |
Nitroterephthalic
acid-modified
Polyethylene Glycol (PEG) |
alcohols, aldehydes, ketones, acids |
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007-23 |
(78% Cyanopropyl)
Methylpolysiloxane |
cis
and trans FAME isomers, dioxin analyses |
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PLOT
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PLT-5A |
Molecular Sieve 5A |
permanent gases (PLOT column) |
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Hot Tip
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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. |
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Hot Tip |
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USING CARRIER GAS FILTERS WILL ENSURE PURITY
OF THE GASES RUNNING THROUGH YOUR COLUMN. |
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