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HPLC silica columns, Viva Silica (USP L3)

HPLC silica columns, Viva Silica (USP L3)

Supplier: Restek

These Viva columns are based on a wide pore material designed for optimal large-molecule separations. Base-deactivated spherical silica is useful for normal-phase or HILIC separations. These columns have a narrow distribution around the mean pore size, permitting a larger portion of the silica surface to play a role in the separation.

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PLOT columns, MXT® metal

PLOT columns, MXT® metal

Supplier: Restek

PLOT columns are made from Siltek® treated stainless steel and have the same characteristics and performance as fused silica PLOT columns but useful for GCs and other field applications.

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Capillary installation gauges

Capillary installation gauges

Supplier: Restek

These capillary installation gauges for Agilent GCs are made from high-quality stainless steel.

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Replacement needle and plunger kits for micro-volume syringes

Replacement needle and plunger kits for micro-volume syringes

Supplier: Restek

These plunger-in-needle kits are used with micro-volume, positive displacement syringes. Plunger and needle must be replaced together.

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Guard/retention gap columns, base-deactivated (fused silica)

Supplier: Restek

Recommended for use with Rtx®-5 Amine, Rtx®-35 Amine, Rtx®-Volatile Amine, and Stabilwax®-DB capillary columns.

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Rethreading tool

Rethreading tool

Supplier: Restek

These rethreading tools are suitable for repairing worn or damaged threads that come as a result of consistent use and temperature changes.

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Doppelte Vespel®-Ringeinlassdichtungen

Doppelte Vespel®-Ringeinlassdichtungen

Supplier: Restek

Eine Ringeinlassdichtung verbessert die Leistung der Injektionsöffnung erheblich, da sie auch nach wiederholten Temperaturzyklen dicht bleibt, ohne dass die Reduziermutter erneut festgezogen werden muss. Diese Dichtung verfügt über zwei weiche Vespel®-Ringe, von denen einer in die Oberseite und der andere in die Unterseite eingebettet ist. Diese Ringe machen eine Unterlegscheibe überflüssig und sorgen dafür, dass nur ein sehr geringes Drehmoment erforderlich ist, um eine leckdichte Abdichtung herzustellen.

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Preparative HPLC columns, Ultra IBD

Preparative HPLC columns, Ultra IBD

Supplier: Restek

Ultra IBD is a polar-embedded column that acts as a strong hydrogen bonder and may be the most versatile column available today. It is compatible with 100% aqueous mobile phases and can be used under reversed-phase or HILIC conditions to retain very polar, ionic compounds in highly organic mobile phases.

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Guard/retention gap columns, polar-deactivated (fused silica)

Supplier: Restek

Polyethylene glycol deactivation layer provides optimum wettability for polar compounds.

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Kapillarsäulen, Rtx®-440 (Quarzglas)

Kapillarsäulen, Rtx®-440 (Quarzglas)

Supplier: Restek

Diese Allzweck-Kapillarsäulen mit einzigartiger Selektivität für Pestizide, PAKs oder andere halbflüchtige Stoffe sind ideal für Analysen im niedrigen/Spurenbereich.

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Gas management system

Gas management system

Supplier: Restek

This gas management system removes moisture, hydrocarbons, and oxygen from carrier gas, extending column lifetime.

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Organischer Referenzstandard, Phenol 1.000 µg/ml in Methanol

Supplier: Restek

Organic Standard, Phenol 1.000 µg/ml in Methanol, Packung: Glasampulle

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Organischer Referenzstandard, Pentachlorethan 2.000 µg/ml in Methanol

Supplier: Restek

Organic Standard, Pentachlorethan 2.000 µg/ml in Methanol, Packung: Glasampulle

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Herbicide reference standard, Metolachlor ESA sodium salt

Herbicide reference standard, Metolachlor ESA sodium salt

Supplier: Restek

Organic Standard, Metolachlor ESA sodium salt, Packung: 1 ml/ampoule

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CLP 04.1 B/N matrix spike mix (4 components)

CLP 04.1 B/N matrix spike mix (4 components)

Supplier: Restek

The mix consists of acenaphthene, 2,4-dinitrotoluene, N-nitroso-di-n-propylamine, pyrene.

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Preparative HPLC columns, Ultra Biphenyl

Preparative HPLC columns, Ultra Biphenyl

Supplier: Restek

These biphenyl columns offer a greater degree of dispersion than conventional phenyls and a greater degree of polarizability than phenyl hexyls, creating higher selectivity and a greater range of usability. Because of these heightened interactions, this column shows substantial increases in retention—especially for dipolar, unsaturated, or conjugated solutes—and enhanced orthogonal selectivity when using methanol mobile phases.

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