2573 Results for: "GC Columns"

Supplier: MACHEREY-NAGEL

State-of-the-art spherical polymer for highest demands in solid phase extraction. PS/DVB copolymer with secondary and tertiary ammonium modification for mixed-mode SPE with weak anion exchange and reversed-phase properties (WAX).

Supplier: VARIAN

Bond Elut™ PH is a non-polar bonded silica material which exhibits a different selectivity to alkyl or aliphatic functionalised phases such as C8 or cyclohexyl. The electron density present in the aromatic ring affords an enhancement in the retention of conjugated or aromatic ring-containing analytes due to desirable pi-pi interactions.

Supplier: CHIRAL TECHNOLOGIES

CROWNPAK® CR(+) and CR(-) contain a chiral crown ether as a chiral selector, which is coated onto a 5 µm silica support. CROWNPAK® selectors are mainly used to separate chiral amino acids and other small molecules with primary amine groups. The elution order of the enantiomers can be reversed when necessary.

Supplier: Restek

Aqueous C18 is a rugged, reversed-phase column with a well-balanced retention profile. It can effectively retain more types of solutes than a conventional C18 and is ideal for multicomponent LC-MS analyses. The general-purpose Aqueous C18 boasts high reproducibility and compatibility with many mobile phase conditions - even 100% aqueous. And when used with a gradient, it eliminates the all-too-common issue of multiple compounds eluting near the column void time.

Supplier: VARIAN

The PLRP-S family of products consists of a range of pore sizes and particle sizes, all with identical chemistry and fundamental adsorptive characteristics. The particles are inherently hydrophobic so there is no bonded phase, alkyl ligand required for reversed-phase separations. This gives a highly reproducible material that is free from silanols and heavy metal ions. Within the extensive product range are columns suitable for analytical separations and preparative purifications.

Supplier: VARIAN

A medium polarity sorbent with many uses, Bond Elut™ CN-E is ideal for applications in which extremely non-polar compounds would be irreversibly retained on high carbon load sorbents such as C₈ and C₁₈. This endcapped version of the cyano sorbent is best utilised when extracting analytes from an aqueous matrix.

Supplier: PerkinElmer

Replacement column nut, 1/16", connects capillary column to adapter

Supplier: Thermo Fisher Scientific

These columns are designed for ion pairing reversed phase HPLC (IP-RPLC) analysis of aminoglycoside antibioticss, including drug purity characterisation and quantification, therapeutic drug monitoring and residual control testing in meat / poultry. The Acclaim™ AmG C18 stationary phase is based on a proprietary C18 bonding technology that provides extremely high stability towards acidic conditions.

Supplier: Agilent

InfinityLab Poroshell 120 HILIC chemistries combine innovative particle technology and bonded phases to improve retention and peak shape for polar analytes. This enables quick and efficient separations of challenging, highly charged polar compounds, and achieves superior analytical sensitivity in MS mode using MS-friendly eluents.

Supplier: Agilent

CrossLab, Column nut, no slot, 6-sided

Supplier: VARIAN

Bond Elut™ LMS polymeric sorbent lets you elute without having to add amine modifiers, buffers, or acids. The elimination of secondary interactions means that elution of analytes can be achieved with pure organic solvents or HPLC mobile phase-compatible solvent mixtures of low ionic strength. These characteristics are crucial to allow compatibility with LC/MS or other delicate analytical techniques.

Supplier: VARIAN

Hexafluoroisopropanol (HFIP) is used as a solvent in GPC for the analysis of important industrial polymers such as polyesters, polyamides and polylactide/glycolide copolymers. For greatly improved performance in extremely polar solvents such as HFIP and trifluoroethanol, we have developed novel 'multipore' technology to produce PL HFIPgel, a PS/DVB packing featuring a monodisperse particle size, high pore volume and high resolution.

Supplier: Thermo Fisher Scientific

These columns offer unique selectivity for aromatic and moderately polar analytes. Suitable for complex samples where some peaks are well resolved on a phenyl phase whilst others require a conventional alkyl phase. Based on Core Enhanced Technology, they provide fast, high resolution separations without the elevated back pressures required by sub-2 µm particles.

Supplier: VARIAN

The Bond Elut™ Certify extraction cartridge utilises a packed bed consisting of a special, non-polar C8 sorbent and a strong cation exchanger (SCX). Certify is most commonly used to extract basic (cationic) drugs from urine and blood, but it is also very effective for extraction of a wide range of compounds from a diverse range of aqueous matrices.

Supplier: Restek

Packing material, Tenax®-TA, mesh size of 35/60

Supplier: Restek

Inlet liners with deactivation improve trace-level analysis that are suitable for agilent GCs equipped with split/splitless inlets. It is made of borosilicate glass.

Supplier: Thermo Fisher Scientific

Pierce™ HisPur™ cobalt chromatography cartridges are convenient, ready-to-use pre-packed devices for efficient purification of polyhistidine-tagged proteins from bacterial, mammalian and baculovirus-infected cells. His-tagged proteins are purified from total soluble protein extract using a cobalt-charged tetradentate chelator immobilised onto 6% crosslinked agarose.

Supplier: Restek

MLE tool kits conveniently provide the tools that make it easier to install and maintain capillary columns.

Supplier: Restek

MLE tool kits conveniently provide the tools that make it easier to install and maintain capillary columns.

Supplier: Restek

These capillary dedicated FID replacement jet for Agilent 5890/6850/6890 GCs are available in standard, high-temperature or Siltek treated high-performance versions.

Supplier: VARIAN

Bond Elut™ Diol (2OH) resembles unbonded silica in its tendency for strong hydrogen bonding with analytes. 2OH can also be employed in the non-polar mode because the hydrocarbon spacer on its functional group provides enough non-polar character for retention of hydrophobic analytes. Bond Elut™ Diol is a listed SPE device for the DIN 14333-1 method on benzimidazole fungicides.

Supplier: Thermo Fisher Scientific

Pierce™ Glutathione chromatography cartridges are convenient, ready to use pre-packed devices for the purification of GST-fusion proteins from cellular lysates. The glutathione is immobilised through its central sulfhydryl onto 6% crosslinked agarose resin. Purification of GST-fusion proteins using glutathione (GSH) agarose beads is well documented and provides a one-step, high purity affinity purification.

Supplier: Thermo Fisher Scientific

SilTite™ ferrules are designed for use with capillary column connectors.

Supplier: VARIAN

PBA is a unique sorbent consisting of a phenylboronic acid covalently linked to a silica gel surface. Covalent processes result in a higher retention to the sorbent surface than other mechanisms, resulting in superior clean-up. The boronate group has a high specificity for cis-diol containing compounds such as catechols, nucleic acids, low molecular weight proteins and carbohydrates.

Supplier: VARIAN

Bond Elut™ PRS is a strong cation exchange sorbent that is also relatively high in polarity. With no appreciable degree of hydrophobicity, in non-polar solvents, PRS is capable of polar and hydrogen bonding interactions. Due to the very low pKa of PRS, a high ionic strength eluent must be used, and so the use of PRS is recommended for weaker cationic species such as pyridinium compounds.

Supplier: Agilent

CrossLab, Column nut, for injector 1093, Stainless steel

Supplier: VARIAN

Bond Elut™ PSA is an alkylated amine sorbent that contains two different amino functionalities, one secondary and one primary. This gives a slightly higher pKa and ionic capacity compared to Bond Elut™ NH₂. The PSA functional group is a very effective bidentate ligand and is therefore an excellent sorbent for chelation applications. PSA has a significantly higher carbon load than most amino functional sorbents and thus is a better choice for polar compounds, which retain too strongly on Bond Elut™ NH₂.

Supplier: VARIAN

Bond Elut™ DEA bears some resemblance to Bond Elut™ NH₂ in its properties but with a slightly lower capacity as an anion exchange sorbent. DEA has a moderately non-polar character due to the alkyl side chains on the amino functionality. These groups still afford a medium level of polarity, higher than C₈ but less polar than C₂ or CN-E.

Supplier: Thermo Fisher Scientific

The Zeba™ Desalting chromatography cartridges, 7 kDa MWCO, contain a high-performance resin for desalting or buffer exchange applications. This resin is ideal for removing low molecular weight compounds including salts, fluorescent dyes, biotin and other small labeling reagents. Zeba™ Desalting Cartridges provide fast, easy and reproducible chromatographic separations and can be regenerated for multiple uses. They efficiently process samples from 50 to 1500 µl.

Supplier: Cytiva

HiLoad™ Superdex™ prep grade are prepacked XK columns designed for pre-parative gel filtration. Superdex™ prep grade is a composite matrix of dextran and highly cross-linked agarose. The steep selectivity of dextran, and the high chemical and physical stability of agarose, enable high resolution separations. The chromatography media combines high mechanical strength with high hydrophilicity, allowing high flow rates and minimal non specific interactions.