Chromatography

Stx-500

(Crossbond® carborane/dimethyl polysiloxane)

• Stx™ is used for columns that have been deactivated using Restek´s Siltek® deactivation.
• Low bleed - ideal for GC/FPD, GC/NPD or GC/MS analyses.

Applications

• Brominated flame retardans
• Coplanar PCB congeners
• other anates with high boiling temperatures

Rxi-17

Rxi® Capillary GC Columns

These columns have been 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 characteristics assures Rxi® columns will have long lifetimes. The Restek chemists also have developed a stable, reproducible manufacturing process, so that Rxi® columns will meet your needs every time you install a new column.

Benefits of Rxi® columns

• Ultra-low bleed
• Exceptional inertness
• Reproducible performance, column after column

Applications

• Pesticides
• Herbicides
• Rosin acids
• Phthalate esters
• Triglycerides
• Sterols

Rxi-XLB

(low-polarity proprietary phase)

Rxi® Capillary GC Columns

These columns have been 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 characteristics assures Rxi® columns will have long lifetimes. The Restek chemists also have developed a stable, reproducible manufacturing process, so that Rxi® columns will meet your needs every time you install a new column.

Benefits of Rxi®-XLB columns

• Ultra-low bleed
• Exceptional inertness
• Unique selectivity
• Reproducible performance, column after column

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 (e.g., US EPA Method 525).

Applications

• Pesticides
• PCB congeners or (e.g.) Aroclor mixes
• PAHs

Rxi-5sil MS

Rxi® Capillary GC Columns

These columns have been 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 characteristics assures Rxi® columns will have long lifetimes. The Restek chemists also have developed a stable, reproducible manufacturing process, so that Rxi® columns will meet your needs every time you install a new column.

Benefits of Rxi® columns

• Ultra-low bleed
• Exceptional inertness
• Reproducible performance, column after column

The Rxi®-5Sil MS stationary phase incorporates phenyl groups in the polymer backbone. This improves thermal stability, reduces bleed, and makes the phase less prone to oxidation. Rxi®-5Sil MS columns are ideal for GC/MS applications requiring high sensitivity, including use in ion trap systems.

Applications

• Chlorinated hydrocarbons
• Phthalates
• Phenols
• Amines
• Organochlorine pesticides
• Organophosphorus pesticides
• Drugs
• Solvent impurities
• Hydrocarbons

Rxi-5 MS

Rxi® Capillary GC Columns

These columns have been 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 characteristics assures Rxi® columns will have long lifetimes. The Restek chemists also have developed a stable, reproducible manufacturing process, so that Rxi® columns will meet your needs every time you install a new column.

Benefits of Rxi® columns

• Ultra-low bleed
• Exceptional inertness
• Reproducible performance, column after column

Applications

• Semivolatiles
• Phenols
• Amines
• Residual solvents
• Drugs of abuse
• Pesticides
• PCB congeners or (e.g.) Aroclor mixes
• Solvent impurities

Rxi-1 MS

Rxi® Capillary GC Columns

These columns have been 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 characteristics assures Rxi® columns will have long lifetimes. The Restek chemists also have developed a stable, reproducible manufacturing process, so that Rxi® columns will meet your needs every time you install a new column.

Benefits of Rxi® columns

• Ultra-low bleed
• Exceptional inertness
• Reproducible performance, column after column

Applications

• Drugs of abuse
• Essential oils
• Hydrocarbons
• Pesticides
• PCB congeners and Aroclor mixtures
• Sulphur compounds
• Amines
• Solvent impurities
• Simulated distillation
• Oxygenates
• Gasoline
• Refinery gases

GraceSmart Phase

High Quality HPLC Phases at Exceptional Value

GraceSmart™ HPLC phases use high-purity silica and are monomerically bonded with uniform coverage. This translates into symmetrical peaks for acids/bases, and predictable reversed-phase selectivity. Whether routine analysis or new method development, use GraceSmart™ columns to get premium performance at exceptional value.

• High purity phases
• Efficient and reproducible separations
• General use selectivity
• Exceptional value

GraceSmart™ HPLC C18 columns can be perfeclty replaced by Arion Plus C18 colums. Explore more details about Arion columns at www.arionchromatography.com.

PinnacleDB Phase

Pinnacle™ DB C18 1.9µm, 3µm & 5µm Columns (USP L1)

Highly base-deactivated spherical silica manufactured by Restek. Monomeric C18 bonding. Hydrophobic C18 phase suitable for analyses of a wide range of compounds, from acidic through slightly basic.

More details about the stationary phase are available here

Picture 1 - particle size distribution in UHPLC columns Pinnacle DB

Pinnacle™ DB Aqueous C18 1.9µm, 3µm & 5µm Columns (USP L1)

Highly selective phase for polar analytes. Compatible with highly aqueous (up to 100%) mobile phases.Temperature limit: 80°C.

Pinnacle™ DB C8 1.9µm, 3µm & 5µm Columns (USP L7)

Highly base-deactivated spherical silica. Monomeric C8 bonding. Similar to Pinnacle DB C18, but the shorter alkyl chain provides less hydrophobic retention. Less retention can be useful for shortening analysis time, if resolution is adequate.

Pinnacle™ DB Cyano 1.9µm & 5µm Columns (USP L10)

Highly base-deactivated spherical silica with cyano bonding. Suitable for analyses of a wide range of compounds, from acidic through slightly basic. Also useful for confirmation of analyses on a C18 or C8 column. Can be used in normal phase or reversed phase mode of separation.

Pinnacle™ DB PFP Propyl 1.9µm, 3µm & 5µm Columns (USP L43)

Pinnacle DB PFP Propyl is a unique pentafluorophenyl phase with a propyl spacer, and uses a highly base-deactivated spherical silica. This highly base-deactivated packing exhibits excellent peak shapes for a wide range of compounds, including nucleosides, nucleotides, and halogenated compounds.

Pinnacle™ DB Biphenyl 1.9µm, 3µm & 5µm Columns (USP L11)

Pinnacle™ DB Biphenyl is a unique reversed phase material that displays both increased retention and selectivity for aromatic and/or unsaturated compounds when compared to conventional alkyl and phenyl phases. An excellent choice for the analysis of steroids, tetracyclines, drug metabolites, and other compounds that contain some degree of unsaturation.

Pinnacle™ DB Silica 1.9µm, 3µm & 5µm Columns (USP L3)

Highly base-deactivated spherical silica manufactured by Restek. Useful for normal phase separations.

Pinnacle™ DB IBD 1.9µm Columns

An intrinsically base-deactivated (IBD) phase, containing a polar group within, or intrinsic to, the hydrocarbon bonded phase. Unique selectivity and a high level of base deactivation, while reducing or eliminating the need for mobile phase additives.

Pinnacle™ DB PAH 1.9µm Columns

Complete resolution of EPA 610 PAHs in less than 4 minutes. Greatly reduces run times, increasing sample throughput. Specifically designed to resolve complex mixtures of polycyclic aromatic hydrocarbons.

Pinnacle™ DB X3 C18 1.9µm Columns

Higher stability in acidic and highly aqueous conditions. Greater retention of hydrophilic compounds. A dense trifunctionally bonded C18 alkyl phase for reversed phase separations

Pinnacle™ DB Small Particle HPLC Columns, 1.9µm

Ruggedness and reproducibility are guaranteed, as Restek control every step in the process, from base silica to bonded phase to final packed column. The silica particles are classified and selected to give an exceptionally tight distribution around 1.9µm, while eliminating <1µm particles that can contribute to a poorly packed bed. Highly base-deactivated Pinnacle DB stationary phases are an excellent choice when analyzing a wide range of compounds, from acidic to basic. To optimize your ultra high pressure HPLC methods, reach for Restek small particle HPLC columns!

MXT Biodiesel phase

MXT®-Biodiesel TG Capillary GC Columns

Benefits of MXT®-Biodiesel TG columns

• Fast analysis times and sharp mono-, di-, and triglyceride peaks
• Stable at 430°C for reliable, consistent performance
• Integra-Gap™ built-in retention gap on 0.53mm ID column eliminates column coupling completely

Rxi phase

Rxi® Capillary GC Columns

These columns have been 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 characteristics assures Rxi® columns will have long lifetimes. The Restek chemists also have developed a stable, reproducible manufacturing process, so that Rxi® columns will meet your needs every time you install a new column.

Benefits of Rxi® columns

• Ultra-low bleed
• Exceptional inertness
• Reproducible performance, column after column

Applications

• Drugs of abuse
• Essential oils
• Hydrocarbons
• Pesticides
• PCB congeners and Aroclor mixtures
• Sulphur compounds
• Amines
• Solvent impurities
• Simulated distillation
• Oxygenates
• Gasoline
• Refinery gases