Supercritical Fluid
Chromatography (SFC)

Series 4000 SFC
Series 4000 SFC Features
Series 4000 SFC Specs
SFC Columns & Accessories

Temperature Programmed HPLC

HPLC Overview
Caloratherm™ Mobile Phase Temp Conditioner
Caloratherm™Specs
Polaratherm™ Total
   Temperature Controller

Polaratherm™ Specs
Mobile Phase Preheater
HPLC Columns
   & Accessories

Selerity Secure-Fit™ Connector

Literature and Brochures

Series 4000 SFC Brochure
High Temperature HPLC Brochure
Application Notes
Technical Notes


 


Main Products Area : SFC Columns & Accessories

Capillary SFC Phases
Packed Columns
SFC Column Accessories
Miscellaneous

100% methylpolysiloxane
A widely used general purpose column providing high efficiency for hydrocarbons, and non-polar or weakly polar solutes.

5 and 50% phenylmethylpolysiloxane
The replacement of methyl groups in the polymethylsiloxane with phenyl groups confers some polarizability in these phases which gives increased capacity for polar solutes.

30% biphenylmethylpolysiloxane
The enhanced polarizability of this column makes it the first choice for most analytes. The biphenyl phase provides high efficiency, inertness, polarization potential and high sample capacity for most solute classes.

25 and 50% cyanopropylmethylpolysiloxane
The cyanopropyl phases provide the highest polar functionality available for SFC and are therefore particularly useful for separating weakly polar and polarizable compounds.

50% octylmethylpolysiloxane
This phase containing strong alkyl character provides higher capacity for non-polar compounds than the methyl phase as well as showing some significant inertness and resistance to breakdown by agressive samples.

SFC Capillary Column Configuration
SFC capillary columns are 50-µm internal diameter by 195-µm outer diameter. Stationary phases are 0.25-µm thick. Columns are equivalent to columns formerly offered by Dionex,and are delivered with a frit restrictor coupled to the column. The columns are offered in 10-m lengths.

Column Performance
Every Selerity SFC column is individually tested under SFC conditions. The resulting chromatogram with analytical conditions is included with each column to provide a baseline and guarantee of performance.

SFC Capillary Columns
SB-Methyl-100
(100% methyl-polysiloxane)
AE002
10
015002
SB-Octyl-50
(50% n-Octyl, 50% methylpolysiloxane)
AE001
10
015000
SB-Phenyl-5
(5% Phenyl, 95% methylpolysiloxane)
AE011
10
216538
SB-Phenyl-50
(50% Phenyl, 50% methylpolysiloxane)
AE012
10
216540
SB-Biphenyl-30
(30% Biphenyl, 70% methylpolysiloxane)
AE003
10
015008
SB-Cyano-25
(25% Cyanopropyl, 75% methylpolysiloxane)
AE004
10
015010
SB-Cyano-50
(50% Cyanopropyl, 50% methylpolysiloxane)
AE006
10
015158

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Silica Packing
These columns are effective wherever a silica phase is required; however, they were designed to specifically meet the requirements of ASTM Method D5186 for the determination of aromatics in diesel and jet fuels and ASTM Method 6550 for the determination of olefins in gasoline. These 1 mm ID columns provide resolution factors significantly higher than specified by Method D5186. Performance is especially enhanced when used with Selerity's zero dead-volume Secure-FitTM connectors. Each column is individually conditioned and tested under the SFC conditions recommended in Method D5186 and are ready to install in your SFC upon receipt.

Silica Packing
AE013
Silica packed column, 5-µm particles, 75-cm, 1/16" OD stainless steel, 1-mm ID. 1/32" end fittings compatible with the Series 3000 capillary system injector fittings. Use with packed column connector kit (CCPC.01) for optimum performance.
AE014
Silica packed column, 5-µm particles, 75-cm, 1/16" OD stainless steel, 1-mm ID. 1/16" inlet fitting compatible with 1/16" Valco injector valve fittings, and 1/32" outlet for convenient connection to restriction tubing with fingertight fittings.
AE015
Silica packed column, 5-µm particles, 75-cm, 1/16" OD stainless steel, 1-mm ID. 1/16" end fittings for use in the Selerity SFC system with switching valves.
AE016
Silica packed column, 5-µm particles, 50-cm, 1/16" OD stainless steel, 1-mm ID. 1/16" end fittings for use in the Selerity SFC system with switching valves.

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SFC Restrictors
All Selerity SFC capillary columns are equipped with frit restrictors which are made by casting a porous ceramic section in 50-µm fused silica tubing and are deactivated with siloxane reagents. Individual testing assures performance within the specified flow rate range. We recommend that restrictors be attached to columns using one of the Selerity Column Coupling Kits described below. Restrictors in custom lengths and flow rates are available on request. Please call or e-mail (techsupport@selerity.com) for a quotation.

SFC Restrictors
AE027
Frit restrictor, 1.5 cm/s average velocity for 50-µm ID column at 100°C and 100 atm, 30-cm length, 10 per package
015353
AE009
Frit restrictor, 1.2 cm/s average velocity for 100-µm ID column at 100°C and 100 atm, 30-cm length, 10 per package
015354
AE005
Frit restrictor, 0.5 cm/s average velocity for 50-µm ID column at 100°C and 100 atm, 100-cm length for mass spectrometry applications, 10 per package
015052

Capillary Column Couplers
Coupler Kit CCFT.01 employs a coupling tube enclosed in a stainless steel housing. Column ends are inserted into the quartz coupling tube. The columns are held in place by tightening the end fittings. These connectors are reusable.

Capillary Column Couplers
AE024
Column coupling kit, 10 self-guiding quartz tubes and epoxy resin
AE025
Column coupling kit includes SS housing, 2 self-guiding quartz tubes, packet of 2 ferrules
AE007
Replacement self-guiding quartz tubes for CCFT.01 and CCEP.10 Pack of 5

Packed Column Connector Kit

Column Couplers
This auto-depth spring-loaded connector assures an absolutely tight fit between the 1/32" column and injector valve fittings. Its finger-tight connections make this zero dead-volume connector easy to use with Selerity packed columns. This connector is suitable for any high-pressure connection of 1/32” fittings; it is recommended when using the Selerity C5186.01 column.

Column Couplers
AE026
Kit for connecting stainless steel columns with 1/32" and fittings to 1/32" valve fittings. Also contains adapters for 1/16" fittings.

Fused Silica Tubing
Fused silica tubing is available with or without deactivation. Deactivated fused silica has a thin inert polysiloxane wall coating.

Fused Silica Tubing
Raw Fused Silica (not Deactivated)
AE030
15
150
1
AE033
50
195
20
Deactivated Fused Silica
AE033
15
150
1
AE035
50
195
20

Other dimensions are available. Call or go to our contact page for a quotation.

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Miscellaneous
BF0001
Ferrule reaming tools, for 1/32" column connection ferrules, pack of 2
BF0001
Fused silica cutting tool

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