8998 Risultati per: "VARIAN"

Supplier: VARIAN

PL-Thiol MP SPE, 500 mg/6 mL

Supplier: VARIAN

Polaris™ silica is ideal for the rapid separation of low molecular weight compounds that are soluble in organic solvents.

Supplier: VARIAN

Florisil is a magnesia-loaded silica gel, extremely polar in nature and ideal for the isolation of polar compounds from non-polar matrices.

Supplier: VARIAN

SPEC SPE solid phase extraction cartridges available in standard straight barrel tube format, offering flexibility in sample size. Use on any standard vacuum manifold such as the Vac Elut 20 or SPS 24.

Supplier: VARIAN

The CP-Wax™ lines of chemically bonded columns offer a broad range of selectivities for method optimisation. The backbone of this series stationary phases is made of a polyethylene glycol.

Supplier: VARIAN

The PLRP-S reversed phase HPLC media delivers the pure oligonucleotides (oligos) required for genomics applications, including quantitative PCR, microarrays, and gene synthesis assays.

Supplier: VARIAN

SepTech™ C18 bulk media, designed for high performance separations at high capacity. The two pore sizes, 60 Å and 150 Å, have been optimised to give high capacity for small molecules and larger natural molecules and peptides, respectively.

Supplier: VARIAN

The quickest and most convenient method to deliver an accurate 12 point column calibration for organic and aqueous GPC/SEC column calibration.

Supplier: VARIAN

Bond Elut™ Plexa PCX uses a polymeric cation exchange resin that combines the outstanding properties of Bond Elut™ Plexa - superior flow characteristics and improved analytical performance - with strong cation exchange functionalities. This mixed-mode SPE sorbent removes neutral and acidic interferences from the matrix, concentrates basic analytes and therefore improves sensitivity in the determination of basic compounds.

Supplier: VARIAN

Strongly basic anion exchanger, Cl⁻ form. Moist, light yellow spherules.

Supplier: VARIAN

Bond Elut empty SPE cartridges are made with high purity polypropylene for cleaner extracts.

Supplier: VARIAN

Bond Elut™ SCX is a strong cation exchanger with a very low pKa. Although the pKa is similar to Bond Elut™ PRS, the presence of the benzene ring in the functional group increases the potential for non-polar interactions. This non-polar characteristic becomes particularly important when conducting ion-exchange from aqueous systems, where selectivity towards compounds exhibiting cationic and non-polar character is seen.

Supplier: VARIAN

Flash cartridges for the purification of organic compounds, and also for scale-up, solid phase extraction.

Supplier: VARIAN

The Mark 7 atomisation system handles complex matrices and achieves precise results quickly.

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: VARIAN

Lampada a catodo cavo, Per: Atomic absorbtion spectroscopy, Single element, hollow cathode lamps uncoded, selenium

Supplier: VARIAN

The Vac Elut™ 20 with a large glass basin and collection rack accommodates larger 16×150 mm test tubes. The same high quality material and features on the standard Vac Elut™ system are incorporated on this special unit. These collection vessels can be utilised in combinatorial chemistry applications using large boiling tubes for collection of purified synthesis mixtures, or for any SPE extraction in which an elution volume greater than 10 ml is required.

Supplier: VARIAN

EnvirElut™ sorbents are specially designed for the extraction of a wide range of compounds from aqueous matrices. EnvirElut™ PAH and Pesticides are available in standard SPE straight barrel cartridges, which can be used on conventional vacuum manifolds such as the Vac Elut SPS 24.

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

VF-5ms is a highly inert 5% phenyl-methyl column for increased sensitivity, accuracy and instrument uptime.

Supplier: VARIAN

GC column for pesticides, PCBs and semi-volatile organic compounds.

Supplier: VARIAN

Solid Phase Extraction (SPE) plate, 96-round well plate, Bond Elut™, Silica sorbents (particle size 40 μm), C8, 25 mg

Supplier: VARIAN

SPEC Disk SPE delivers superior flow characteristics and trouble free automation.

Supplier: VARIAN

The Vac Elut™ 20 vacuum control valve, vacuum gauge, and quick release valve are mounted on the lid, away from the corrosive waste stream and within convenient reach. The solvent-resistant PP rack is available in a variety of sizes to accommodate collection tubes commonly used in sample preparation.

Supplier: VARIAN

Bond Elut DEA (diethylaminopropyl) can be used as both a weak anion exchange sorbent with aqueous samples or as a polar sorbent with nonpolar organic matrixes.

Supplier: VARIAN

Vespel®, Ferrules, vespel, blank, without holes, O.Ø ¹/₁₆"

Supplier: VARIAN

VersaPlate well plate tubes, PRS, 100 mg

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VersaPlate well plate tubes, PBA, 100 mg

Supplier: VARIAN

The Select Silanes column is a stabilized trifluoropropyl-methyl polysiloxane phase optimized for silanes determination. The Select Silanes column has a very thick film, resulting in high capacity and retention for highly volatile silanes.

Supplier: VARIAN

The select Al₂O₃ MAPD is an aluminum oxide PLOT column for the analysis of reactive hydrocarbons and is especially targeted towards the response for methyl acetylene and propadiene (MAPD).