Restek / Rtx

Rtx

Restek™ Rtx^® :GC Columns are Fused Silica columns for gas chromatography. They are available in many different stationary phase modifications and cover a broad range of applications.

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30m, 0.32mm ID, 0.25µm Rtx-35 Cap. Column

RT10424

€744.00

Product Type: GC Column Base Material: 35% Phenyl 65% methylpolysiloxane Delivery Time: approx. 5 days Chemistry: 35 (35HT, 35MS) Column Type: Capillary Column Manufacturer: Restek Film Thickness [µm]: 0.25 µm Internal Diameter: 0.32 mm Length: 30 m

Rtx-35 Cap. Column 30m, 0.25mm ID, 0.25µm with 10m Integra-Guard Column

RT10423-127

€817.00

Rtx-35 Cap. Column 30m, 0.25mm ID, 0.25µm with 5m Integra-Guard Column

RT10423-124

€795.00

30m, 0.25mm ID, 0.25µm Rtx-35 Cap. Column

RT10423

€697.00

15m, 0.32mm ID, 0.25µm Rtx-35 Cap. Column

RT10421

€461.00

15m, 0.25mm ID, 0.25µm Rtx-35 Cap. Column

RT10420

€428.00

30m, 0.25mm ID, 0.1µm Rtx-35 Cap. Column

RT10408

€713.00

60m, 0.32mm ID, 3µm Rtx-20 Cap. Column

RT10387

€1,328.00

Product Type: GC Column Base Material: 20% Phenyl 80% methylpolysiloxane Delivery Time: approx. 5 days Chemistry: 20 Column Type: Capillary Column Manufacturer: Restek Film Thickness [µm]: 3 µm Internal Diameter: 0.32 mm Length: 60 m USP Class: G28, G32

30m, 0.53mm ID, 3µm Rtx-20 Cap. Column

RT10385

€841.00

30m, 0.32mm ID, 3µm Rtx-20 Cap. Column

RT10384

€751.00

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Technical Data

Column-Name	Phase	Polarity	USP	I.D.	Film Thickness	T_max^[1]
Rtx^®-1	Dimethyl polysiloxane (100%)	Non-Polar	G1, G2, G38	0.10 mm 0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.10, 0.40 µm 0.20, 0.40 µm 0.10, 0.25, 0.50, 1.0 µm 0.10, 0.25, 0.50, 1.0, 1.5, 3, 4, 5 µm 0.10, 0.25, 0.50, 1.0, 1.5, 3, 5, 7 µm	240 ‒ 350 °C
Rtx^®-5	Diphenyl- /dimethylpolysiloxane (5%/95%)	Low-Polar	G27, G36	0.10 mm 0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.10, 0.40 µm 0.20, 0.40 µm 0.10, 0.25, 0.50, 1.00 µm 0.10, 0.25, 0.50, 1.00, 1.5, 3 µm 0.10, 0.25, 0.50, 1.00, 1.5, 3, 5 µm	260 ‒ 350 °C
Rtx^®-5 MS	Diphenyl- /dimethylpolysiloxane (5%/95%)	Low-Polar	G27, G36	0.25 mm 0.32 mm 0.53 mm	0.10, 0.25, 0.50, 1.00 µm 0.10, 0.25, 0.50, 1.00 µm 0.50, 1.00, 1.50 µm	310 ‒350 °C
Rtx^®-5 Amine	Diphenyl- /dimethylpolysiloxane (5%/95%)	Low-Polar	N/A	0.25 mm 0.32 mm 0.53 mm	0.25, 0.50, 1.00 µm 1.00, 1.50 µm 1.00, 3.00 µm	315 °C
Rtx^®-20	Diphenyl- /dimethylpolysiloxane (20%/80%)	Low/Mid Polar	G28, G32	0.25 mm 0.32 mm 0.53 mm	0.25, 0.50, 1.00 µm 0.25, 0.50, 1.00 µm 1.00 µm	320 °C
Rtx^®-35	Diphenyl- /dimethylpolysiloxane (35%/65%)	Mid-Polar	G42	0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.20, 0.40 µm 0.25, 0.50, 1.00 µm 0.25, 0.50, 1.00 µm 0.50, 1.00, 1.50, 3.00 µm	320 °C
Rtx^®-35 Amine	Diphenyl- /dimethylpolysiloxane (35%/65%)	Mid-Polar	N/A	0.25 mm 0.32 mm 0.53 mm	0.50, 1.00 µm 1.00, 1.50 µm 1.00, 3.00 µm	220 °C
Rtx^®-50	Methyl-phenylpolysiloxane (100%)	Mid-Polar	G3	0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.20, 0.40 µm 0.25, 0.50, 1.00 µm 0.25, 0.50, 1.00 µm 0.25, 0.50, 0.83, 1.00, 1.50 µm	260 ‒ 320 °C
Rtx^®-65	Diphenyl- /dimethylpolysiloxane (65%/35%)	Mid-Polar	N/A	0.25 mm 0.32 mm 0.53 mm	0.25, 0.50, 1.00 µm 0.25, 0.50, 1.00 µm 1.00 µm	250 ‒ 300 °C
Rtx^®-65TG	Diphenyl- /dimethylpolysiloxane (65%/35%)	Mid-Polar	N/A	0.25 mm 0.32 mm 0.53 mm	0.1 µm	370 °C
Rtx^®-200	Trifluorpropyl-methylpolysiloxane (100%)	Mid-Polar	G6	0.15 mm 0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.15 µm 0.20, 0.40 µm 0.25, 0.50, 1.00 µm 0.25, 0.50, 1.00, 1.50 µm 0.25, 0.50, 1.00, 1.50, 3.00 µm	260 ‒ 340 °C
Rtx^®-200 MS	Trifluorpropyl-methylpolysiloxane (100%)	Mid-Polar	G6	0.25 mm 0.32 mm	0.10, 0.25, 0.50, 1.00 µm 0.25, 0.50, 1.00 µm	290 ‒ 340 °C
Rtx^®-225	Cyanopropylmethyl- /Phenylmethylpolysiloxane (50% / 50%)	Polar	G7, G19	0.25 mm 0.32 mm 0.53 mm	0.25, 0.50 µm 0.25, 0.50, 1.00 µm 0.25 µm	200 ‒ 240 °C
Rtx^®-440	Proprietary	Mid-Polar	N/A	0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.18 µm 0.25, 0.50 µm 0.25, 0.50 µm 0.50 µm	340 °C
Rtx^®-502.2	Diphenyl- /dimethylpolysiloxane	Mid-Polar	N/A	0.18 mm 0.25 mm 0.32 mm 0.45 mm 0.53 mm	1.0 µm 1.4 µm 1.8 µm 2.55 µm 3.0 µm	270 °C
Rtx^®-624	Cyanopropylmethyl-phenylmethyl- dimethylpolysiloxane (Equivalent to 6% Cyanopropylphenyl phases)	Low/Mid Polar	G43	0.18 mm 0.25 mm 0.32 mm 0.53 mm	1.0 µm 1.4 µm 1.8 µm 3.0 µm	240 °C
Rtx^®-1614	Diphenyl- /dimethylpolysiloxane (5%/95%)	Non-Polar	N/A	0.25 mm	0.10 µm	360 °C
Rtx^®-1701	Cyanopropylmethyl-phenylmethyl- dimethylpolysiloxane (Equivalent to 14% Cyanopropylphenyl phases)	Mid-Polar	G46	0.10 mm 0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.10 µm 0.20, 0.40 µm 0.10, 0.25, 0.50, 1.00 µm 0.10, 0.25, 0.50, 1.00, 1.50 µm 0.25, 0.50, 1.00, 1.50, 3.00 µm	260 ‒ 280 °C
Rtx^®-2330	Bis-cyanopropyl- /cyanopropylphenylpolysiloxane (90%/10%)	Polar	G8, G48	0.18 mm 0.25 mm 0.32 mm	0.10 µm 0.10, 0.20 µm 0.20 µm	260 ‒ 275 °C
Rtx^®-2887	Dimethyl polysiloxane (100%)	Non-Polar	N/A	0.53 mm	2.65 µm	360 °C
Rtx^®-G27	Diphenyl- /dimethylpolysiloxane	Low-Polar	G27	0.53 mm	5.0 µm	290 °C
Rtx^®-1301 (G43)	Cyanopropylphenyl dimethylpolysiloxane	Low/Mid Polar	G43	0.25 mm 0.32 mm 0.53 mm	0.25, 0.50, 1.00, 1.40 µm 0.25, 0.50, 1.00, 1.50, 1.80 µm 0.25, 0.50, 1.00, 1.50, 3.00 µm	240 ‒ 280 °C
Rtx^®-BAC Plus 1	Proprietary	Mid-Polar	N/A	0.32 mm 0.53 mm	1.8 µm 3.0 µm	260 °C
Rtx^®-BAC Plus 2	Proprietary	Mid-Polar	N/A	0.32 mm 0.53 mm	0.6 µm 1.0 µm	260 °C
Rtx^®-Biodiesel TG	Proprietary	Non-Polar	N/A	0.32 mm	0.1 µm	350 °C
Rtx^®-DHA	100% Dimethyl polysiloxane	Non-Polar	N/A	0.20 mm 0.25 mm	0.5 µm 0.5, 1.0 µm	340 °C
Rtx^®-5 DHA Tuning	Diphenyl- /dimethylpolysiloxane (5%/95%)	Non-Polar	N/A	0.25 mm	1.0 µm	325°C/350°C
Rtx^®-Dioxin2	Proprietary	Polar	N/A	0.18 mm 0.25 mm	0.18 µm 0.25 µm	340 °C
Rtx^®-Mineral Oil	Proprietary	Non-Polar	N/A	0.32 mm	0.10, 0.15, 0.30 µm	400 °C
Rtx^®-PCB	Proprietary	Low-Polar	N/A	0.18 mm 0.25 mm 0.32 mm	0.18 µm 0.25 µm 0.50 µm	340 °C
Rtx^®-CLPesticides	Proprietary	Low-Polar	N/A	0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.18 µm 0.25 µm 0.32, 0.5 µm 0.5 µm	320°C/340°C
Rtx^®-CLPesticides2	Proprietary	Low-Polar	N/A	0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.14 µm 0.20 µm 0.25, 0.5 µm 0.42 µm	320°C/340°C
Rtx^®-OPPesticides	Proprietary	Low-Polar	N/A	0.25 µm 0.32 mm 0.53 mm	0.25 µm 0.50 µm 0.83 µm	330 °C
Rtx^®-OPPesticides2	Proprietary	Low-Polar	N/A	0.18 mm 0.25 mm 0.32 mm 0.53 mm	0.20 µm 0.25 µm 0.32 µm 0.50 µm	330 °C
Rtx^®-VMS	Proprietary	Low-Polar	N/A	0.18 mm 0.25 mm 0.32 mm 0.45 mm 0.53 mm	1.0 µm 1.4 µm 1.8 µm 2.55 µm 3.0 µm	260 °C
Rtx^®-VRX	Proprietary	Mid-Polar	N/A	0.18 mm 0.25 mm 0.32 mm 0.45 mm 0.53 mm	1.0 µm 1.4 µm 1.8 µm 2.55 µm 3.0 µm	260 °C
Rtx^®-Volatiles	Diphenyl- /dimethylpolysiloxane	Mid-Polar	N/A	0.25 mm 0.32 mm 0.53 mm	1.00 µm 1.50 µm 2.00 µm	280 °C
Rtx^®-Volatile Amine	Proprietary	N/A	N/A	0.32 mm	N/A	290 °C
Rtx^®-WAX	Polyethylene Glycol	Polar	G14, G15, G16, G20, G39	0.10 mm 0.25 mm 0.32 mm 0.53 mm	0.10, 0.20 µm 0.25, 0.50 µm 0.25, 0.50, 1.00 µm 0.25, 0.50, 1.00 µm	250 °C

[1] Dependent on film thickness and whether you work at constant temperature or with a gradient

Rtx^®-1:

General-purpose columns for solvent impurities, PCB congeners (e.g., Aroclor mixes), simulated distillation, arson accelerants, gases, natural gas odorants, sulfur compounds, essential oils, hydrocarbons, semivolatiles, pesticides, oxygenates.
Long lifetime and very low bleed at high operating temperatures

Rtx^®-5:

General-purpose columns for drugs, solvent impurities, pesticides, hydrocarbons, PCB congeners (e.g., Aroclor mixes), essential oils, semivolatiles.

Rtx^®-5 MS:

General-purpose columns for drugs, solvent impurities, pesticides, hydrocarbons, PCB congeners (e.g., Aroclor mixes), essential oils, semivolatiles.
Well-suited for GC/MS applications

Rtx^®-5 Amine:

Application-specific column for amines and other basic compounds, including alkylamines, diamines, triamines, ethanolamines, and nitrogen-containing heterocyclics.

Rtx^®-20:

General-purpose column for volatile compounds, flavor compounds, alcoholic beverages
Low columns-bleed

Rtx^®-35:

General-purpose column for organochlorine pesticides, PCB congeners (e.g., Aroclor mixes), herbicides, pharmaceuticals, sterols, rosin acids, phthalate esters
Due to the increased phenyl content compared to 5% phenyl phases and the associated higher polarity, differences in the elution order are observed. Therefore, this phase is particularly suitable as a confirmation phase.

Rtx^®-35 Amine:

Application-specific columns for amines and other basic compounds, including alkylamines, diamines, triamines, ethanolamines, and nitrogen-containing heterocyclics

Rtx^®-50:

General-purpose columns for pesticides, herbicides, rosin acids, phthalate esters, sterols
Due to the high thermal stability, this column is often used as a confirmation column in double column analyses with 5% phenyl phases

Rtx^®-65:

General-purpose columns for phenols, fatty acids, triglycerides
Highest share of phenyl of all cross-linked silicone phases. This achieves a strong interaction with aromatics
Very suitable as confirmation column (in combination with Rtx^®-5) for EPA method 604 (phenols)
Similar to a Carbowax^® phase, FAMEs on an Rtx^®-65 elute according to their chain length. However, this phase does not show the thermal limitations of Carbowax^® phases.

Rtx^®-65TG:

Application-specific column, specially tested for triglycerides
Further applications: Phenols, Fatty acids

Rtx^®-200:

General-purpose columns for solvents, Freon fluorocarbons, alcohols, ketones, silanes, glycols, and drugs of abuse
Excellent confirmation column with an Rtx-5 column for phenols, nitrosamines, organochlorine pesticides, chlorinated hydrocarbons, and chlorophenoxy herbicides
Basically for all molecules with strongly electronegative groups
Very good chemical and thermal stability
Selectivity is basically different from phenyl- or cyano groups and polyethylene glycol phases

Rtx^®-200 MS:

Well-suited for GC/MS applications
General purpose columns for solvents, Freon fluorocarbons, alcohols, ketones, silanes, glycols
Excellent confirmation column with an Rtx-5 column for phenols, nitrosamines, organochlorine pesticides, chlorinated hydrocarbons, and chlorophenoxy herbicides
Basically for all molecules with strongly electronegative groups
Very good chemical and thermal stability
Selectivity is basically different from phenyl- or cyano groups and polyethylene glycol phases

Rtx^®-225:

General-purpose columns for FAMEs, carbohydrates, sterols, flavor compounds
Also suitable for separation of cis/trans isomers
Similar polarity as Carbowax^® phases, but improved thermal stability

Rtx^®-440:

General-purpose columns with unique selectivity for pesticides, PAHs, or other semivolatiles
Ideal for low/trace-level analyses
Low-bleed, high-resolution columns with unique selectivity

Rtx^®-502.2:

Application-specific column with unique selectivity for volatile organic pollutants
Cited in U.S. EPA Method 502.2 and in many gasoline range organics (GRO) methods for monitoring underground storage tanks
Excellent separation of trihalomethanes
Ideal polarity for light hydrocarbons and aromatics

Rtx^®-624:

Application-specific columns for volatile organic pollutants
Recommended in U.S. EPA methods for volatile organic pollutants
Compared to the Rtx^®-502.2 column, better resolution of early eluting compounds
Especially suitable for EPA method 524.2, as it separates 2-Nitropropane from 1,1-Dichloropropane

Rtx^®-1614:

Optimized for PBDE (Poly Brominated Diphenyl Ethers) analysis by EPA Method 1614
Unique deactivation gives higher BDE-209 response, for greater analytical sensitivity
Exceeds EPA Method 1614 resolution criteria for BDE-49 and BDE-71

Rtx^®-1701:

General-purpose columns for alcohols, oxygenates, PCB congeners (e.g., Aroclor mixes), pesticides, and fragrance compounds
Ideal for confirmation analyses in combination with a Rtx^®-35 or Rtx^®-5
Long-term reproducibility and minimal bleeding
Suitable for use with sensitive ECD and MSD detectors

Rtx^®-2330:

Suitable for the separation of Cis/trans-Isomers of FAMEs (Fatty Acid Methyl Esters), Isomers of Dioxins and Furans
Special surface treatment of the FS capillary stabilizes the highly polar stationary phase. As a chemically unbound phase it therefore shows comparatively low bleeding and a better reproducibility.

Rtx^®-2887:

Application-specific column for simulated distillation according to ASTM D2887
Optimized for flame retardant analysis by EPA Method 1614
High thermal stability and special deactivation

Rtx^®-G27:

Application-specific columns for residual solvents in pharmaceutical products
Analytical column with Integra-Guard guard column eliminates connecting problems and leaks
Meet USP <467> requirements

Rtx^®-1301 und Rtx^®-G43:

Application-specific columns for residual solvents in pharmaceutical products (G43)
Analytical column with Integra-Guard guard column eliminates connecting problems and leaks (G43)
Meet all requirements of USP <467> (G43)
General-purpose columns for residual solvents, alcohols, oxygenates, and volatile organic compounds (1301)

Rtx^®-BAC Plus 1 und Rtx^®-BAC Plus 2:

Especially designed for base-line separation of blood alcohol analyses
Optimized column selectivities guarantee resolution of ethanol, internal standards, and frequently encountered interferences.
Robust and reproducible column chemistry ensures longer column lifetime and consistent results
Blood alcohol analysis requires dual column confirmation when using GC/FID!

Rtx^®-Biodiesel TG:

Low column bleed at high temperatures
For glycerin and glycerides analysis, according to ASTM D6584 and EN 14105 methods
Linearity for all reference compounds exceeds method requirements
Columns with retention gaps feature Alumaseal connectors to prevent leaks and extend column life

Rtx^®-DHA:

Optimized for hydrocarbon analysis
Columns meet or exceed all ASTM D6730-01 and CAN/CGSB 3.0 No. 14.3-99 method guidelines
Test report for method D6730 supplied with each column
Excellent responses and peak symmetry for polar oxygenates
The ASTM D6730 method also requires a tuning column ‒ Rtx-5^® DHA Tuning Column

Rtx^®-5 DHA Tuning:

Optimized for hydrocarbon analysis

Rtx^® Dioxin2:

Unique selectivity for toxic dioxin and furan congeners allows use as a confirmation GC column
Isomer specificity for 2,3,7,8-TCDD and 2,3,7,8-TCDF achieved with one GC column

Rtx^®-Mineral Oil:

Application specific columns meet DIN EN ISO 9377-2:2000 requirements
Optimized column dimensions for fast mineral oil screening
Surface linked phase guarantees long lifetime, robustness, and stability to 400 °C
Suitable for glycerin and glycerides analysis, according to ASTM D6584 and EN 14105 methods

Rtx^®-PCB:

Unique polymer for PCBs analysis by GC-ECD or GC-MS
Good results for other semivolatiles.
Low polarity; inert to active compounds

Rtx^®-CLPesticides und Rtx^® CLPesticides2:

Application-specific columns for organochlorine pesticides and herbicides
Low bleed ‒ ideal for high sensitivity GC-ECD or GC-MS analyses
Analyze EPA Method 8081B, 8082A, 8151A, 504.1, 515, 508.1, and 552.2 compounds without time-consuming column changes

Rtx^®-OPPesticides und Rtx^® OPPesticides2:

Application-specific columns for organophosphorus pesticides
Best column combination for US EPA Method 8141
Low bleed ‒ ideal for GC-FPD, GC-NPD, or GC-MS analyses

Rtx^®-VMS:

Application-specific columns for analyzing volatile organic pollutants by GC-MS including Methods TO-15, TMS, and EPA 8260
Complete separation of U.S. EPA Method 8260 compounds in less than 10 minutes

Rtx^®-VRX:

Application-specific columns for volatile organic pollutants
Excellent for U.S. EPA Method 8021 compounds

Rtx^®-Volatiles:

Application-specific columns for volatile organic pollutants
Especially developed for EPA Methods 601, 602 and 624

Rtx^®-Volatile Amine:

Unique selectivity for baseline resolution of all volatile amines
Excellent inertness assures accuracy and sensitivity for volatile amines, including free ammonia
Highly robust phase withstands repeated water injections, resulting in longer column lifetime

Rtx^®-WAX:

Polyethylene glycol (PEG) phase for alkenols, glycols, and aldehydes

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