775 Results for: "chromatography caps"

Supplier: VARIAN

Bond Elut™ PCB is a specially designed sorbent which allows for the facile extraction of polychlorinated biphenyl (PCB) compounds from a variety of matrices. Desired analytes can be loaded and eluted using a simple, single solvent method prior to analysis by GC/ECD.

Supplier: Cytiva

Superose 6 Increase SEC columns are designed for high-resolution, small-scale preparative purification, and analysis of large globular proteins, protein complexes, and other macromolecules in the molecular weight range 5 to 5000 kD.

Supplier: Cytiva

HiScreen™ Capto™ DEAE column is a weak anion exchanger with a bed height of 10 cm making it an excellent tool for method optimisation, parameter screening, robustness testing, and convenient scale-up.

Supplier: Cytiva

MAbTrap™ is an affinity chromatography kit for fast and effective purification of monoclonal and polyclonal IgG from ascites fluid, serum and cell culture supernatants. MAbTrap™ Kit contains everything necessary to perform a complete one step purification without using complicated equipment. It also eliminates time consuming buffer preparation and column packing.

Supplier: Cytiva

HiScreen Capto adhere ImpRes is a ready-to-use column pre-packed with BioProcess Capto adhere ImpRes strong anion exchange multimodal resin. The columns are an excellent choice for method optimization and parameter screening.

Supplier: Cytiva

GSTPrep™ FF 16/10 is prepacked, ready-to-use column containing glutathione Sepharose™ 4 fast flow designed for one-step, scale-up purification of glutathione S-transferase (GST)-tagged proteins.

Supplier: Cytiva

HiScreen Q FF columns are prepacked with Q Sepharose Fast Flow, a strong anion exchanger, and are part of the process development platform available from Cytiva. The columns are an excellent choice for method optimization and parameter screening.

Supplier: Cytiva

Phenyl Sepharose 6 Fast Flow is a well established, standard aromatic HIC medium for capture and intermediate purification requiring low to medium hydrophobicity.Two levels of substitution help find optimal selectivity and binding capacity for a given application.

Supplier: VARIAN

Bond Elut™ ENV, a PS/DVB polymer, is designed for the extraction of polar organic residues. It contains 125 μm spherical particles with a high degree of cross linking, advantageous for high volume, fast flow-through applications.

Supplier: VARIAN

Alumina, like silica, is an extremely polar sorbent. The alumina surface tends to be slightly more stable under high pH conditions than unfunctionalised silica. The small particle size of the Bond Elut™ Alumina range ensures high extraction efficiency even when small bed masses are used.

Supplier: Cytiva

HiScreen™ MabSelect Xtra™ is prepacked with MabSelect Xtra™ of 4,7 ml volume and bed height of 10 cm make HiScreen™ columns excellent tools for method optimisation, parameter screening for capture of monoclonal antibodies (MAbs), robustness testing, and convenient scale-up.

Supplier: VARIAN

Bond Elut AccuCAT cartridges are mixed bed SPE cartridges consisting of a strong cation exchange (SCX) and a strong anion exchange (SAX) sorbent packed into one bed. AccuCAT is effective for the extraction of acidic, basic and neutral analytes from urine and other biological samples. AccuCAT is particularly effective for catecholamine extraction from bio fluids.

Supplier: VARIAN

Bond Elut™ SAX is a strong anion exchange sorbent ideally suited for the extraction of compounds such as carboxylic acids, which may not retain effectively on weak anion exchange sorbents. The sorbent is supplied in the chloride counter ion form. You can modify the selectivity of the phase by replacing the chloride ion with other anions, such as acetate and hydroxide.

Supplier: VARIAN

Native silica is generally regarded as the most polar SPE sorbent available. Bond Elut™ SI is particularly effective at separating compounds with a very similar structure. Applying the analytes in a non-polar solvent, then increasing the solvent polarity by increasing the concentration of a polar modifier, such as THF or ethyl acetate, delivers effective separations.

Supplier: VARIAN

Bond Elut™ NH₂ is a weaker anion exchanger than sorbents such as SAX (a quaternary amine sorbent that is always charged) and is therefore a better choice for retention of very strong anions, such as sulfonic acids, which may retain irreversibly on a SAX sorbent. Similar to Diol and SI sorbents, Bond Elut™ NH₂ is excellent for the separation of structural isomers.

Supplier: Thermo Fisher Scientific

HyperSep™ Retain™-CX polymeric SPE material is a high purity, highly porous, polystyrene DVB material partially functionalised with sulphonic acid groups to give balanced retention of basic and non polar analytes. HyperSep™ Retain™-CX is ideal for the retention of a wide range of drugs of abuse, including basic and neutral drugs.

Supplier: DWK Life Sciences

These borosilicate glass gravity columns are manufactured from medium wall tubing with PTFE stopcock. These columns have a coarse porosity glass frit (40 - 60 μm pore size) at the lower end to act as a support for column packing material. Also these columns can be used alone or in combination with reservoirs and flow control adapters.

Supplier: TOSOH Bioscience

SkillPak 50 and 200 ml columns are designed for fast method development and scale-up and are pre-packed with TOYOPEARL® and TSKgel® process chromatography media. These columns offer superior separation of biomelocules, such as monoclonal antibodies, proteins and oligonucleotides. They are the best solution to scale up methods developed on SkillPak 1 and 5 ml pre-packed columns.

Supplier: Spectrum Laboratories

Designed to maximise convenience and efficiency, the ready-to-use Micro Float-A-Lyzer® is ideal for the dialysis of very small sample volumes. Available in two volume sizes, 100 to 200 μl and 400 to 500 μl, the Micro Float-A-Lyzer® features a proprietary biotech grade cellulose ester (CE) membrane incorporated into a pre-assembled, leakproof microdialysis device. Available in 7 concise MWCO’s with colour-coded caps, CE is a synthetic, low-protein binding membrane with no heavy metal and sulfide contaminants. The pre-formed tubular geometry also limits volume increase and sample dilution. The self-standing and self-floating device is designed with a Luer-lok® sample port to provide quick and easy access for loading, in-process testing and total sample recovery using a 1 ml syringe (included). Available in packs of 12, individual units can interlock to form a "flotilla" for the simultaneous dialysis of multiple samples. Only Micro Float-A-Lyzer® and Float-A-Lyzer® G2 assure a 95 to 98% sample recovery, 98% sample purity and <10% sample dilution; all in an easy to use, convenient dialysis device.

Supplier: VARIAN

Bond Elut™ CH is a mid-polarity sorbent that exhibits unique selectivities for certain analytes. When employed as a non-polar sorbent, CH has the approximate polarity of a C₂ sorbent. Bond Elut™ CH is often a good choice when non-polar sorbents such as C₁₈, C₈ or C₂ do not provide the desired selectivity.

Supplier: VARIAN

Bond Elut™ Jr cartridges have top and bottom Luer fittings allowing easy sample processing when used in conjunction with standard SPE cartridges. Bond Elut™ LRC cartridges have a large reservoir above the sorbent bed and are suitable for use on any standard SPE vacuum manifold.

Supplier: HICHROM

CIMmultus™ columns are based on an innovative monolithic technology. Distinguished by large pores/flow through channels these columns are designed for the production, purification, and analytics of large proteins (IgG, IgM, PEGylated proteins), viruses (AAV, adenovirus, lentivirus, influenza, bacteriophages), VLPs, exosomes and pDNA for example.

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 QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) technique is increasingly becoming the technique of choice for the extraction of pesticide residues in fruit, vegetables and other foods. The QuEChERS method offers the advantage of high recoveries, accurate results and high sample throughput, combined with the associated cost savings with low solvent and labour requirements. Yet the procedure is robust and rugged.

Supplier: VARIAN

Bond Elut™ C8 is very similar in properties to C18, but is not as retentive for non-polar compounds, due to its shorter hydrocarbon chain, and therefore reduced carbon loading. C8 is an excellent replacement for C18 when analytes are too strongly retained for effective elution. The potential for polar interactions is somewhat higher than for C18 because there is less coverage of the silica surface. These polar interactions are not, however, a significant property of C8.

Supplier: Cytiva

HiScreen columns prepacked with Blue Sepharose™ Fast Flow has cibacron blue 3G covalently attached to the Sepharose™ 6 Fast Flow matrix by the triazine coupling method.This is an excellent choice for method optimisation and parameter screening for purification of albumin, enzymes (including NAD+ and NADP+), coagulation factors, interferons and related proteins.

Supplier: Cytiva

HiPrep™ 16/60 Sephacryl® S-200 HR and HiPrep™ 26/60 Sephacryl® S-200 HR are pre-packed gel filtration columns for preparative separation of biomolecules of up to 5 and 13 ml sample volume respectively. Sephacryl® S-200 is used for separating mid-size proteins including antibodies and serum proteins.

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: Thermo Fisher Scientific

Protein desalting spin columns are designed to desalt or exchange buffer of protein samples with volumes of 30 to 120 µl. These devices have exceptional desalting characteristics with ≥95% retention of salts and small molecules while providing excellent recovery of proteins greater than 7 kDa. Multiple samples can be processed in less than five minutes without cumbersome column preparation steps.

Supplier: Cytiva

HiPrep™ 16/60 Sephacryl® S-400 HR and HiPrep™ 26/60 Sephacryl® S-400 HR are pre-packed gel filtration columns for preparative separation of biomolecules of up to 5 and 13 ml sample volume respectively. Sephacryl® S-400 is used for separating polysaccarides, macromolecules with extended structures, and even small plasmids.