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More about chromatography
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
| ID (mm) | df(µm) | Temperature limits (°C) |
|---|---|---|
| 0.10 | 0.10 | -60 to 330/350 |
| 0.18 | 0.18 | -60 to 330/350 |
| 0.18 | 0.36 | -60 to 330/350 |
| 0.20 | 0.33 | -60 to 330/350 |
| 0.25 | 0.25 | -60 to 330/350 |
| 0.25 | 0.50 | -60 to 330/350 |
| 0.25 | 1.00 | -60 to 330/350 |
| 0.32 | 0.25 | -60 to 330/350 |
| 0.32 | 0.50 | -60 to 330/350 |
| 0.32 | 1.00 | -60 to 330/350 |
| 0.32 | 4.00 | -60 to 330/350 |
| 0.53 | 0.50 | -60 to 330/350 |
| 0.53 | 1.00 | -60 to 330/350 |
| 0.53 | 1.50 | -60 to 330/350 |
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!