"Restek"
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.
Expand 7 Items
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.
Expand 6 Items
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.
Expand 5 Items
Dual Vespel® ring inlet seals
Supplier: Restek
A ring inlet seal greatly improves injection port performance as it stays sealed even after repeated temperature cycles, without retightening the reducing nut. This seal features two soft Vespel® rings, one embedded in its top surface and the other embedded in its bottom surface. These rings eliminate the need for a washer and ensure very little torque is needed to make a leak-tight seal.
Expand 12 Items
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.
Expand 12 Items
Guard/retention gap columns, polar-deactivated (fused silica)
Supplier: Restek
Polyethylene glycol deactivation layer provides optimum wettability for polar compounds.
Expand 8 Items
Capillary columns, Rtx®-440 (fused silica)
Supplier: Restek
These general purpose capillary columns with unique selectivity for pesticides, PAHs, or other semivolatiles are ideal for low/trace-level analyses.
Expand 6 Items
Gas management system
Supplier: Restek
This gas management system removes moisture, hydrocarbons, and oxygen from carrier gas, extending column lifetime.
Expand 1 Items
Organic reference standard, Phenol 1,000 µg/ml in methanol
Supplier: Restek
Organic Standard, Phenol 1,000 µg/ml in methanol, Pack type: Glass ampoule
Expand 2 Items
Organic reference standard, Pentachloroethane 2,000 µg/ml in methanol
Supplier: Restek
Organic Standard, Pentachloroethane 2,000 µg/ml in methanol, Pack type: Glass ampoule
Expand 2 Items
Herbicide reference standard, Metolachlor ESA sodium salt
Supplier: Restek
Organic Standard, Metolachlor ESA sodium salt, Pack type: 1 ml/ampoule
Expand 1 Items
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.
Expand 1 Items
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.
Expand 3 Items
Molecular sieve columns (packed)
Supplier: Restek
Molecular sieve packed columns easily separate permanent gases at above-ambient temperatures.
Expand 31 Items
Organic reference standard, 1,1-Dichloroethylene 2000 µg/ml in methanol
Supplier: Restek
Organic Standard, 1,1-Dichloroethylene 2,000 µg/ml in methanol, Pack type: Glass ampoule
Expand 2 Items
Claw and claw holder kit
Supplier: Restek
This claw safely and cleanly removes liners, O-rings, or other small objects from the injection port.



