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Ultra C18 Columns

Restek Corp.

The Ultra line represents Restek’s broadest selection of stationary phases on a single silica support. Made of high-purity, type-B silica that minimizes activity and creates high-density bonding, these columns are designed for selective and reliable HPLC applications.

5.0/5.0
|2 Reviews
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Rxi-SVOCms Columns

Restek Corp.

Designed specifically for semivolatiles (SVOC) analysis, Restek’s new Rxi-SVOCms columns are designed to provide consistent performance that will keep calibrations passing longer so more samples can be run before needing to recalibrate the instrument or replace the column.

4.7/5.0
|3 Reviews
  • Best New Separations Product of the Year
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Stabilwax® (Fused Silica)

Restek Corp.

General purpose columns for FAMEs, flavor compounds, essential oils, solvents, xylene isomers, and US EPA Method 603 (acrolein/acrylonitrile). Resistant to oxidative damage. Temperature range: 40°C to 260°C. Equivalent to USP G14, G15, G16, G20, and G39 phases. The polar-deactivated surface tightly binds the Carbowax® polymer and increases thermal stability, relative to competitive columns. The bonding mechanisms produce a col…

4.6/5.0
|16 Reviews
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Rxi®-5HT (Fused Silica) GC columns

Restek Corp.

Restek's new line of fused silica capillary GC columns - Rxi® columns - is now available!  The columns are 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 sta…

4.7/5.0
|11 Reviews
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Rxi®-624Sil MS (Fused Silica) GC columns

Restek Corp.

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 characteristics assures Rxi® columns will have long lifetimes. The Restek chemists also have developed a stable, reproducible manufacturing process, so that Rxi® columns will…

4.8/5.0
|19 Reviews
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Rxi®-17 (Fused Silica) GC columns

Restek Corp.

Restek's former Rtx®-17 columns are now manufactured using new Rxi® column technology--for unsurpassed inertness, ultra-low bleed, guaranteed reproducibility, and unmatched performance! The new line of fused silica capillary GC columns - Rxi® columns - is now available! These new columns are designed specifically to be the best columns available, for exceptional inertness, ultra-low bleed, and reproducible retention and select…

4.7/5.0
|5 Reviews
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Q-sep™ QuEChERS Tubes

Restek Corp.

Q-sep™ QuEChERS Tubes for Pesticide Residue Analysis • Fast, simple sample extraction and cleanup using dSPE. • Fourfold increases in sample throughput. • Fourfold decreases in material cost. • Convenient, ready to use centrifuge tubes with ultra pure, preweighed adsorbent mixes. Quick, Easy, Cheap, Effective, Rugged, and Safe, the QuEChERS ("catchers") method, developed by the USDA Eastern Regional Research Center, has becom…

5.0/5.0
|1 Review
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Rxi®-5Sil MS (Fused Silica) Columns

Restek Corp.

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 characteristics assures Rxi® columns will have long lifetimes. The Restek chemists also have developed a stable, reproducible manufacturing process, so that Rxi® columns will…

4.7/5.0
|27 Reviews
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Ultra Selective Liquid Chromatography™

Restek Corp.

Reversed Phase Method Development that's Simple, Fast, Effective, and Universal!•Boasts the widest range of reversed phase selectivity in the industry.•Simplifies column selection down to 4 unique stationary phases.•Employs orthogonal selectivity to speed up effective method development.•Maximizes efficacy of your column screening systems.•Fits any HPLC or UHPLC instrumentation. Restek Ultra Selective Liquid Chromatography™ (…

4.0/5.0
|1 Review
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Rtx®-BAC Plus 1 Columns (fused silica)

Restek Corp.

- 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. - 2 minute analysis time increases lab productivity. - Stable to 260 °C Don’t forget: Blood alcohol analysis requires dual column confirmation when using GC/FID.

4.0/5.0
|2 Reviews
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MXT®-1HT SimDist Column

Restek Corp.

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. Metal columns are a better alternative than fused silica, and the MXT®-1HT SimDist columns are the lowest bleed, highest efficiency columns available, outperforming other metal columns for critical method p…

3.7/5.0
|1 Review
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Electronic Leak Detector

Restek Corp.

Don't let a small leak turn into a costly repair—protect your analytical column by using a Restek leak detector. Audible tone indicates the severity of a leak. Redesigned circuitry offers 12 hours of operation between charges. Detects a broad range of gases; Ex rated for use with hydrogen and other explosive gases.

4.4/5.0
|10 Reviews
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Raptor HILIC-Si LC Columns

Restek Corp.

Switch to a Raptor HILIC-Si LC column when you need more retention and resolution of hydrophilic, polar analytes. HILIC silica column designed for increased retention of polar compounds without ion-pairing reagents. 2.7 μm Raptor core-shell particles provide the speed of SPP, with greater efficiency and capacity than 5 μm particles. Ideal for increasing sensitivity and selectivity in LC-MS analyses. Fully compatible with both…

4.4/5.0
|2 Reviews
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Rtx-Wax Columns

Restek Corp.

Rtx-Wax columns are the most inert and efficient PEG columns currently available. The extended operating temperature range allows analysis of compounds having a wide volatility range and ensures low bleed at temperatures as high as 250 °C. Selectivity is comparable to other Carbowax columns for compounds of intermediate to high polarity.

4.0/5.0
|1 Review
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Ultra C1 Columns

Restek Corp.

The Ultra line represents Restek’s broadest selection of stationary phases on a single silica support. Made of high-purity, type-B silica that minimizes activity and creates high-density bonding, these columns are designed for selective and reliable HPLC applications. This exceptionally stable C1 phase features our least-retentive reversed-phase hydrocarbon packing. Stationary Phase Category: trimethylsilane (L13) Ligan…

4.0/5.0
|1 Review
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LC Stainless Steel Capillary Tubing

Restek Corp.

Whether you need to replace system tubing as part of your troubleshooting or want to reduce the dwell volume of your system as you move to narrower columns, Restek has the quality tubing in the lengths and IDs you need. Each ID is color-coded, so it is easy to identify and replace correctly. Tubing is precision cut, resulting in clean, square-cut ends without ovality.

4.3/5.0
|1 Review
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Rxi®-1HT

Restek Corp.

3-IN-1 TECHNOLOGY with Rxi® columns: • Highest Inertness • Lowest Bleed • Exceptional ReproducibilityRxi® columns are more stable at high temperatures than any other manufacturer’s column, resulting in higher system sensitivity. This low-bleed characteristic is the result of superior stabilization achieved by optimizing polymer cross-linking and surface deactivation technologies. Benefits of using ultra-low bleed Rxi® column…

4.3/5.0
|1 Review
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