Restek Gas Chromatography Columns
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These application-specific columns for blood alcohol analysis baseline separate all critical compounds—including ethanol, methanol, acetone, tert-butanol, acetaldehyde, isopropanol, and n-propanol—in less than 2 minutes. Every Rtx-BAC Plus 1 and Rtx-BAC Plus 2 column is qualified with a…
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polar phase; Crossbond base-deactivated Carbowax polyethylene glycol—for amines and basic compounds Stabilwax-DB columns reduce adsorption and improve responses for many basic compounds, without analyte derivatization or column priming. For different selectivity of basic compounds, or…
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high-polarity phase; Crossbond diphenyl dimethyl polysiloxane The Rtx-65TG phase resolves triglycerides by degree of unsaturation as well as by carbon number. Because of the chemistry required to achieve 370°C thermal stability, an Rtx-65TG column should not be used for the analyses of…
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low-polarity phase; Crossbond diphenyl dimethyl polysiloxane The diphenyl dimethyl polysiloxane stationary phase is the most popular GC stationary phase and is used in a wide variety of applications. All residual catalysts and low molecular weight fragments are removed from the Rtx-5 polymer,…
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nonpolar phase; Crossbond dimethyl polysiloxane MXT-1 columns exhibit long lifetime and very low bleed at high operating temperatures. A proprietary synthesis process eliminates residual catalysts that could cause degradation and increase bleed. General-purpose columns for solvent…
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midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane Rtx-200 columns have accomplished many difficult separations not possible on any other bonded stationary phase. Many analysts consider these the best, most inert midpolarity columns available. The trifluoropropylmethyl polysiloxane…
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D3606 Application Column Set
RestekConforms to the specifications established in the current ASTM method D3606 for the quantitation of benzene and toluene in spark ignition fuel containing ethanol. Complete resolution of benzene from ethanol—no compromising coelutions. Accurate quantification of benzene and toluene.…
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Strength-tested Inexpensive Coiled in 7-inch diameters, banded in 5-meter sections, and mounted in a Restek cage
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midpolarity Crossbond phase Rtx-1701 is one of the more popular stationary phases used in capillary GC. The mix of cyano and phenyl functional groups increases the polarity and offers a different elution order relative to less polar Rtx-1 or Rtx-5 columns. An Rtx-1701 column is ideal for…
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low-polarity phase; Crossbond diphenyl dimethyl polysiloxane Rxi fused silica capillary GC columns were designed specifically to be the best columns available, for exceptional inertness, ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance, this…
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proprietary Crossbond diphenyl/dimethyl polysiloxane phase Rtx-Volatiles columns were the first columns designed specifically for analyses of the 34 volatile organic pollutants listed in U.S. EPA methods 601, 602, and 624. With these columns, you can quantify all compounds listed in these…
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polar phase; Crossbond polyethylene glycol Restek’s polar-deactivated surface tightly binds the Carbowax polymer and increases thermal stability, relative to competitive columns. Because of the increased stability produced by the bonding process, Stabilwax columns exhibit long column…
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highly polar phase; biscyanopropyl cyanopropylphenyl polysiloxane Rtx-2330 is one of the most polar capillary column stationary phases. Cyano groups on both sides of the polymer backbone give the phase a strong dipole moment and high selectivity for cis/trans compounds or compounds with…
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5% diphenyl, 95% dimethyl polysiloxane Optimized for PBDE analysis by EPA Method 1614. Short column option resolves BDE-209 3 times faster, with less thermal breakdown. Unique deactivation gives higher BDE-209 response than competitor columns, for greater analytical sensitivity. …
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The Rtx-Mineral Oil stationary phase and column dimensions were optimized for the fast screening of mineral oils in extracts from solids and water samples according to DIN EN ISO 9377-2:2000. The 0.10 µm column is the gold standard for the method, whereas the 0.15 µm column provides…
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The Rtx-Volatile Amine column was designed specifically for analyzing volatile amines in difficult matrices, such as water. The unique base deactivation creates an exceptionally inert surface for these sensitive compounds, resulting in highly symmetrical peaks, which allow low detection limits. The…
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low-polarity phase; Crossbond diphenyl dimethyl polysiloxane The diphenyl dimethyl polysiloxane stationary phase is the most popular GC stationary phase and is used in a wide variety of applications. All residual catalysts and low molecular weight fragments are removed from the MXT-5 polymer,…
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midpolarity Crossbond phase Rxi fused silica capillary GC columns were designed specifically to be the best columns available, for exceptional inertness, ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance, this combination of column…
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polar phase; Crossbond Carbowax polyethylene glycol—provides oxidation resistance General-purpose columns for FAMEs, flavor compounds, essential oils, amines, solvents, xylene isomers, and U.S. EPA Method 603 (acrolein/acrylonitrile). Equivalent to USP G14, G15, G16, G20, and G39…
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100% divinylbenzene Porous polymers are unique, highly retentive stationary phases with a wide application range that are able to elute both polar and nonpolar compounds. They are very hydrophobic, so water has no impact on retention times and even elutes as a good chromatographic peak. The…
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Rt-XLSulfur Columns
RestekSulfur analyses are traditionally performed using PTFE tubing to improve column inertness. Unfortunately, PTFE tubing is gas permeable, difficult to pack with high efficiency, prone to shrinkage, and has poor thermal stability. The Rt-XLSulfur packed or micropacked column eliminates these problems.…
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low- to midpolarity phase The unique polarity of the Rtx-624 column makes it ideal for analyzing volatile organic pollutants. Although the Rtx-502.2 column is recommended in many methods, the Rtx-624 column offers better resolution of early eluting compounds. The Rtx-624 phase produces greater…
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2,3-di-O-propyl-6-O-tert-butyl dimethylsilyl beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane By adding β or γ cyclodextrin to our bonded Rtx-1701 stationary phase, we greatly enhance overall utility and column lifetime for our chiral columns, compared to…
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Extend column lifetime. Excellent inertness—obtain lower detection limits for active compounds. Sharper chromatographic peaks by utilizing retention gap technology. Maximum temperature: 360°C
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nonpolar phase Accurate boiling point determination for medium and heavy fractions using GC simulated distillation requires columns and phase polymers that are robust enough to withstand high temperatures without significant degradation. Lowest bleed for longest column lifetime. …
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Micropacked GC Columns
RestekIncreased efficiency over traditional packed columns. Higher capacity than PLOT columns. Made from inert, flexible SilcoSmooth tubing. Wide range of packings available. Standard coils fit all instruments. No special instrument configurations required. Efficient, Inert, and…
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polar polyethylene glycol deactivation Tested with a comprehensive test mix to ensure high inertness Polyethylene glycol deactivation layer provides optimum wettability for polar compounds Minimize peak splitting when using polar solvents such as methanol or water Compatible with…
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Restek's R&D chemists have optimized the deactivation technology applied to our MXT-Alumina BOND/MAPD column for improved analysis of trace concentrations of polar hydrocarbons like acetylene, methyl acetylene, and propadiene in hydrocarbon streams containing higher levels of C1-C5…
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Advantages of metal MXT PLOT columns include: Can be made in small coil diameters—perfect for tight spaces. Rugged material withstands rough handling and shock. Designed for robust performance in process GCs and field instruments. Available in 3.5"-coil diameter or…
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Special Columns for Unsaturated Light Hydrocarbons Faster separations of C1 to C4 hydrocarbons This 3-column set is finely tuned to resolve light hydrocarbons. When used in the proper valving system, it will elute C5+ hydrocarbons ahead of C1 through C4 hydrocarbons. 88004-875: To be…
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porous divinylbenzene homopolymer Porous polymers are unique, highly retentive stationary phases with a wide application range that are able to elute both polar and nonpolar compounds. They are very hydrophobic, so water has no impact on retention times and even elutes as a good chromatographic…
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Restek’s molecular sieve 5A PLOT columns are designed for efficient separation of argon/oxygen and other permanent gases, including carbon monoxide. Special coating and deactivation procedures ensure chromatographic efficiency and the integrity of the porous layer coating. Molecular sieves…