Szukałeś: HPLC Sorbents

By pumping pressurized liquid solvent with the sample mixture through a HPLC sorbent-filled column, researchers are able to identify each mixture component using retention time measurements. These sorbents are capable of working with small particle sizes requiring high operational pressure, a common high-performance liquid chromatography operation characteristic. Able to separate and quantify, the HPLC sorbents have a hydrophobic or polar nature. The versatile materials function with digital microprocessing instruments for rapid testing.

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Sorbents, LiChrospher®

Supplier: Merck

LiChrospher®, LiChrospher® 100 DIOL, 5 µm, 04

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Bulk media, PLRP-S

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.

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Bulk packing material for preparative HPLC columns, SepTech™ C18 reverse phase media

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.

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Ion exchangers

Supplier: Merck

In general, ion exchangers consist of a cross-linked polymer matrix with a uniform distribution of fixed ionic groups sited throughout the resin structure. These must be balanced by a similar number of ions of the opposite charge, (counter ions) to maintain electrical neutrality. Cation exchangers therefore, exchange and enrich only cations, anion exchangers only anions. In contrast adsorber resins have a non ionic, but depending on the structure, a somewhat polar character, and don't adsorb stoichiometrically both: anions, cations, as well as uncharged compounds.