Rxi®-1HT Columns (fused silica) (nonpolar phase; dimethyl polysiloxane) • 40% longer lifetime from specially designed fused silica tubing. • Columns processed for high-temperature applications, such as high molecular weight hydrocarbons. • Temperature range: -60 to 400 °C.
Rtx-65TG Columns (fused silica) high-polarity phase; Crossbond diphenyl dimethyl polysiloxane • Application-specific columns, specially tested for triglycerides. • Temperature range: 40 °C to 370 °C
Porous Polymer Columns (packed) 80/100 Mesh. Siltek treated stainless steel.
Rtx-BAC Plus 1 Columns (fused silica) • 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. • Stable to 260 °C.
DiatoSorb Diatomaceous Earth Columns (bonded stationary phase packed columns) • Low bleed levels. • Longer column lifetimes. • Short conditioning times.
Rtx-BAC PLUS 2 Cap.Column for HP 6850 GCs
Rtx-225 Columns (fused silica) polar phase; Crossbond cyanopropylmethyl phenylmethyl polysiloxane • General-purpose columns for FAMEs, carbohydrates, sterols, flavor compounds, and sugars. • Equivalent to USP G7, G19 phases. • Temperature range: 40 °C to 240 °C
Rt®-Alumina BOND/Na2SO4 Columns (fused silica PLOT) (Na2SO4 deactivation) • Acetylene and propadiene elute after butanes. • Best separation for butene isomers (impurities in butene streams). • Methyl acetylene elutes after 1,3-butadiene. • Cyclopropane (impurity in propylene) elutes well before propylene. • Stable to 200 °C.
Rxi®-624Sil MS Columns (fused silica) (midpolarity Crossbond® phase) • Low-bleed, high-thermal stability column—maximum temperatures up to 320 °C. • Inert—excellent peak shape for a wide range of compounds. • Selective—G43 phase highly selective for volatile organics and residual solvents, great choice for USP<467>. • Manufactured for column-to-column reproducibility—well-suited for validated methods.
CarboBlack Columns (packed) On CarboBlack B • Graphitized carbon black offers unique selectivity and very little adsorption for alcohol analyses. • CarboBlack B support, with its higher surface area, can hold up to a 10% loading of a nonsilicone liquid phase. • CarboBlack supports provide resolution and retention similar to Carbopack and Carbograph supports.
(Crossbond® 100% dimethyl polysiloxane—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. • Stable to 340 °C.
Rxi®-1ms Columns (fused silica) (nonpolar phase; Crossbond® dimethyl polysiloxane) • General-purpose columns for arson accelerants, essential oils, hydrocarbons, pesticides, PCB congeners (e.g., Aroclor mixes), sulfur compounds, amines, solvent impurities, simulated distillation, oxygenates, gasoline range organics (GRO), refinery gases. • Tested and guaranteed for ultra-low bleed; improved signal-to-noise ratio for better sensitivity and mass spectral integrity. • Temperature range: -60 °C to 330/350 °C. • Equivalent to USP G1, G2, and G38 phases.
Packed Column, 5%Rt 1200 5%Bentone 34 Silcopt W 100/120 2m, 2mmID Silco, General Configuration
Stabilwax®-MS Columns (fused silica) • High-polarity, stable polyethylene glycol (PEG) stationary phase. • Low bleed and rugged enough to withstand repeated temperature cycles without retention time shifting. • Ideal for food, flavor, fragrance, and industrial chemical and solvent analysis. • Temperature range: 40 °C to 250/260 °C. • Equivalent to USP G14, G15, G16, G20, and G39 phases. New Stabilwax®-MS columns ensure reproducible retention times from run to run, even with temperature cycling. When methods require trace analysis, this highly polar, low-bleed stationary phase produces excellent signal-to-noise levels! Ideal for food and flavor analysis (e.g., essential oils), fragrance and allergen analysis, as well as industrial solvent and chemical analysis.
Porous Polymer Columns (packed) 80/100 Mesh. Siltek treated stainless steel.
Rtx®-65 Columns (fused silica) (mid- to high-polarity phase; Crossbond® diphenyl dimethyl polysiloxane) • General-purpose columns for phenols, fatty acids, triglycerides. • Temperature range: 50 °C to 300 °C. The Rtx®-65 phase contains the highest phenyl content of any bonded stationary phase available to improve separation of aromatic compounds through increased phase-analyte interaction. A unique polarity makes these columns ideal for a variety of analyses, from phenols to FAMEs. As a confirmation column for EPA Method 604 phenols, an Rtx®-65 column produces a different elution order compared to the primary Rtx®-5 column. Rtx®-65 columns elute FAMEs according to equivalent chain length, similar to bonded Carbowax® columns, but the Rtx®-65 phase does not suffer the thermal stability limitations of other polar stationary phases.
Rt®-βDEXsp Columns (fused silica) (2,3-di-O-propyl-6-O-tert-butyl dimethylsilyl beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane) Uses: Often useful in dual-column configurations, with the Rt-βDEXsm column, for complex enantiomeric separations. Temp. limits 40 to 230 °C
Innovative Integra-Guard Columns Get the protection without the connection! • These innovative columns incorporate both guard column and analytical column in a continuous length of tubing, eliminating the connection and all connection-associated problems! • The guard column section is marked separately from the analytical column, using high-temperature string.
Rxi-35Sil MS Columns (fused silica) midpolarity Crossbond phase • Special selectivity and excellent inertness for substituted polar compounds, such as drugs, pesticides, herbicides, PCBs, phenols, etc. • Provides superior separation for cannabinoids. • Very low-bleed phase for GC-MS analysis. • Extended temperature range: 50 °C up to 360 °C.
Rtx®-5 Amine Columns (fused silica) (low-polarity phase; Crossbond® 5% diphenyl/95% dimethyl polysiloxane) • Application-specific columns for amines and other basic compounds, including alkylamines, diamines, triamines, ethanolamines, and nitrogen-containing heterocyclics. • Stable to 315 °C. Active basic compounds that otherwise require derivatization, or an alternative analytical technique, can be analyzed on an Rtx®-5 Amine column. The tubing surface is chemically altered to reduce tailing of basic compounds, eliminating the need for column priming. An Rtx®-5 Amine column is ideal for analyzing a wide variety of basic compounds, but breakthrough technology also allows the analysis of neutral compounds, adsorptive compounds with oxygen groups susceptible to hydrogen bonding, or even weakly acidic compounds such as phenols. Every Rtx®-5 Amine column is tested to ensure that it exceeds the requirements for analyzing ppm levels of amines, without priming, and to ensure low bleed at maximum operating temperature.
Stabilwax-DA Cap. Column w/15m x 0.53mm ID Polar Deact Guard Col Presstight with glue
Rxi®-1ms Columns (fused silica) (nonpolar phase; Crossbond® dimethyl polysiloxane) • General-purpose columns for arson accelerants, essential oils, hydrocarbons, pesticides, PCB congeners (e.g., Aroclor mixes), sulfur compounds, amines, solvent impurities, simulated distillation, oxygenates, gasoline range organics (GRO), refinery gases. • Tested and guaranteed for ultra-low bleed; improved signal-to-noise ratio for better sensitivity and mass spectral integrity. • Temperature range: -60 °C to 330/350 °C. • Equivalent to USP G1, G2, and G38 phases. Similar phases: HP-1ms, HP-1msUI, DB-1ms, DB-1msUI, Ultra-1, VF-1ms, ZB-1, ZB-1ms
Rtx®-35 Columns (fused silica) (midpolarity phase; Crossbond® diphenyl dimethyl polysiloxane) • General-purpose columns for organochlorine pesticides, PCB congeners (e.g., Aroclor mixes), herbicides, pharmaceuticals, sterols, rosin acids, phthalate esters. • Temperature range: 40 °C to 320 °C. • Equivalent to USP G42 phase.
Rtx-200 Columns (fused silica) midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane • 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. • Equivalent to USP G6 phase.
(Crossbond® 100% dimethyl polysiloxane—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. • Stable to 340 °C.
(low- to midpolarity phase) • General-purpose columns for residual solvents, alcohols, oxygenates, and volatile organic compounds. • Temperature range: -20 °C to 280 °C. • Equivalent to USP G43 phase. Many analysts feel the Rtx®-1301 column has the best cyanosiloxane bonded stationary phase available, with no other column manufacturer providing lower bleed, longer lifetime, or better inertness. Our polymer is fully characterized to ensure long-term reproducibility, column-to-column consistency, and low bleed—even with sensitive detectors such as ECDs and MSDs.
Rt-βDEXcst Columns (fused silica) Proprietary cyclodextrin material added into 14% cyanopropylphenyl/86% dimethyl polysiloxane Uses: Proprietary stationary phase, developed specifically for the fragrance industry. Also used for pharmaceutical applications.
CarboBlack Packed Columns (On CarboBlack C) Graphitized carbon black offers unique selectivity and very little adsorption for alcohol analyses. Two types of CarboBlack supports are available, CarboBlack B and CarboBlack C. CarboBlack B support, with its higher surface area, can hold up to a 10% loading of a nonsilicone liquid phase. CarboBlack C support can hold up to a 1% loading of a nonsilicone liquid phase. Many Carbowax® 20M-loaded CarboBlack packings are available. CarboBlack packings are treated with KOH or picric acid for basic or acidic compounds, and special alcoholic beverage loadings are available. CarboBlack supports provide resolution and retention similar to Carbopack™ and Carbograph supports. **Siltek treated stainless steel.
MXT-5 Columns (Siltek-treated stainless steel) low-polarity phase; Crossbond diphenyl dimethyl polysiloxane • General-purpose columns for drugs, solvent impurities, pesticides, hydrocarbons, PCB congeners (e.g., Aroclor mixes), essential oils, and semivolatiles. • Equivalent to USP G27, G36 phases. • 4.5" standard coil diameter. • Temperature range: -60 to 430 °C
Porous Polymer Columns (packed) 80/100 Mesh
Rxi-35Sil MS Columns (fused silica) midpolarity Crossbond phase • Special selectivity and excellent inertness for substituted polar compounds, such as drugs, pesticides, herbicides, PCBs, phenols, etc. • Provides superior separation for cannabinoids. • Very low-bleed phase for GC-MS analysis. • Extended temperature range: 50 °C up to 360 °C.
Rxi®-XLB Columns (fused silica) (low-polarity proprietary phase) • General-purpose columns exhibiting extremely low bleed. Ideal for many GC-MS applications, including pesticides, PCB congeners (e.g., Aroclor mixes), PAHs. • Unique selectivity. • Temperature range: 30 °C to 360 °C. Improvements in polymer synthesis and tubing deactivation enable us to make inert, stable Rxi®-XLB columns especially well-suited for analyzing active, high molecular weight compounds with sensitive GC-MS systems, including ion trap detectors. Excellent efficiency, coupled with inertness, low bleed, and high thermal stability, make Rxi®-XLB columns ideal for analyzing semivolatile compounds in drinking water.
CarboBlack Packed Columns (On CarboBlack B) Graphitized carbon black offers unique selectivity and very little adsorption for alcohol analyses. Two types of CarboBlack supports are available, CarboBlack B and CarboBlack C. CarboBlack B support, with its higher surface area, can hold up to a 10% loading of a nonsilicone liquid phase. CarboBlack C support can hold up to a 1% loading of a nonsilicone liquid phase. Many Carbowax® 20M-loaded CarboBlack packings are available. CarboBlack packings are treated with KOH or picric acid for basic or acidic compounds, and special alcoholic beverage loadings are available. CarboBlack supports provide resolution and retention similar to Carbopack™ and Carbograph supports. **Siltek treated stainless steel.
n-Octane on Res-Sil C Column (packed) This packed column has unique selectivity for resolving unsaturated light hydrocarbons. SilcoSmooth Tubing
Rtx-200 Cap. Column 30m, 0.53mm ID, 3.00um w/5m x 0.53mm ID Guard Column For HP 6850 Presstight w/ glue
Rt®-γDEXsa Columns (fused silica) (2,3-di-acetoxy-6-O-tert-butyl dimethylsilyl gamma cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane) Uses: Larger organic molecules. Also useful for flavor compounds in fruit juices. Temp. limits 40 to 230 °C
Rtx-CLP Cap. Column Kit0.32mm ID 11141/11324/10027 w/Angled Y Presstight
MXT®-WAX Columns (Siltek®-treated stainless steel) (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). • Temperature range: 40 °C to 260 °C. • Equivalent to USP G14, G15, G16, G20, and G39 phases. • 4.5" standard coil diameter.
Porous Polymer Columns (packed) 80/100 Mesh. Stainless steel.
Rtx-5Sil MS Cap. Column 15m, 0.25mmID, 0.10um 5m, 0.25mm Guard Column Built into the length
(midpolarity phase; Crossbond® 35% diphenyl/65% dimethyl polysiloxane) • Application-specific columns for amines and other basic compounds, including alkylamines, diamines, triamines, ethanolamines, and nitrogen-containing heterocyclics. • Stable to 220 °C. Active basic compounds that otherwise require derivatization, or an alternative analytical technique, can be analyzed on an Rtx®-35 Amine column. The tubing surface is chemically altered to reduce tailing of basic compounds, eliminating the need for column priming. An Rtx®-35 Amine column is ideal for analyzing a wide variety of basic compounds, but breakthrough technology also allows the analysis of neutral compounds and adsorptive compounds with oxygen groups susceptible to hydrogen bonding. Every Rtx®-35 Amine column is tested to ensure that it meets the requirements for analyzing ppm levels of amines, without priming, and to ensure low bleed at maximum operating temperature.
CarboBlack Columns (packed) On CarboBlack B • Graphitized carbon black offers unique selectivity and very little adsorption for alcohol analyses. • CarboBlack B support, with its higher surface area, can hold up to a 10% loading of a nonsilicone liquid phase. • CarboBlack supports provide resolution and retention similar to Carbopack and Carbograph supports.
Rtx-TNT2 Cap. Column 6m, 0.53mm ID, 1.5um Sold as 3-pk only
Rtx-225 Columns (fused silica) polar phase; Crossbond cyanopropylmethyl phenylmethyl polysiloxane • General-purpose columns for FAMEs, carbohydrates, sterols, flavor compounds, and sugars. • Equivalent to USP G7, G19 phases. • Temperature range: 40 °C to 240 °C
MXT-BAC1 Cap. Column 30m, 0.53mm ID, 3.00um
Stabilwax®-DB Columns (fused silica) (polar phase; Crossbond® base-deactivated Carbowax® polyethylene glycol—for amines and basic compounds) • Application-specific columns for underivatized amines and other basic compounds, including alkylamines, diamines, triamines, nitrogen-containing heterocyclics. No need for column priming. • Temperature range: 40 °C to 220 °C. 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 higher oven temperatures, use an Rtx®-5 Amine column. Stabilwax®-DB is a bonded stationary phase, but avoid rinsing these columns with water or alcohols.
Innovative Integra-Guard Columns Get the protection without the connection! • These innovative columns incorporate both guard column and analytical column in a continuous length of tubing, eliminating the connection and all connection-associated problems! • The guard column section is marked separately from the analytical column, using high-temperature string.
Rtx-65TG Cap. Column 30m, 0.25mm ID, 0.10um 5" HP6850 Cage
FAMEWAX Columns (USP G16) (fused silica) (polar phase; Crossbond® polyethylene glycol) • Application-specific columns for FAMEs, specially tested with a FAME mixture. • Temperature range: 20 °C to 250 °C. The elution order of polyunsaturated FAMEs on FAMEWAX columns is comparable tothat on other Carbowax® columns, but baseline resolution is achieved in significantly less time.
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