78217 Results for: "Silica Flour"

Supplier: Restek

General-purpose columns for organochlorine pesticides, PCB congeners (e.g. Aroclor mixes), herbicides, pharmaceuticals, sterols, rosin acids, phthalate esters.

Supplier: Restek

Rtx-200 columns have accomplished many difficult separations. The trifluoropropylmethyl polysiloxane stationary phase has a unique selectivity that changes elution orders and resolves compounds that phenyl, cyano, or carbowax phases can not. These columns offer exceptional thermal stability, low bleed, and superior inertness - even for active compounds such as phenols, and with sensitive detectors such as ECDs, NPDs, and MSDs.

Supplier: Merck

TLC plates, unmodified silica gel 60
This range of plates uses Merck silica gel 60 with a unique polymeric binder that results in a uniform, hard surface that will not easily crack or blister. The smooth, extremely dense plate coating ensures narrow bands and maximum separation efficiency with the lowest background noise. Layer thickness 200 μm and, particle size of 10 to 12 µm. Flexible aluminium plates that can easily be cut to match individual separation requirements. Two inorganic fluorescent indicators for UV detection of colourless substances. Samples which absorb shortwave UV at 254 nm are detected due to fluorescence quenching.

Supplier: MACHEREY-NAGEL

Unmodified HPTLC silica layers with concentrating zone for HPTLC.

Supplier: TECHNICAL QUARTZ SOLUTIONS

Fused silica tubes are made from natural quartz to ensure high quality and versatility

Supplier: Bel-Art Products, a Part of SP

Useful anywhere desiccation is needed, these cartridges contain inert, non-corrosive, and non-toxic silica gel.

Supplier: Merck

Kieselguhr, EMPROVE® ESSENTIAL NF suitable for use as excipient, purified and calcined, SAFC®

Supplier: Trajan Scientific and Medical

The capillary cutting tool is used for burr free cutting of fused silica tubing.

Supplier: Whatman products (Cytiva)

These ion exchange papers combine cellulose and large pore silica gel for separations in which both partition and adsorption are important, including the separation of phospholipids, steroids, phenols and dyes.

Supplier: Thermo Fisher Scientific

Silicon dioxide 99.998% (trace metals basis)

Supplier: Dräger

Sampling activated tubes for direct measurement indication even with complex compounds and mixtures of substances in air investigations and gas analyses.

Supplier: Lovibond

Test kit, Silica PR tablet, Range: 0,05 – 4 mg/l SiO₂, For unit: MD600

Supplier: Restek

Proprietary Crossbond® phase, specific columns for volatile organic compounds.

Supplier: PerkinElmer

SPE Supra-Clean® SI-S are spherical silica-based columns. Ideal for extracting polar compounds when analysing aldehydes, amines, pesticides, herbicides, carotenoids, fat soluble vitamins, baflatoxins, fatty acids, and phospholipids.

Supplier: Restek

Porous polymers are unique, highly retentive stationary phases with a wide application range that are able to elute both polar and nonpolar compounds.

Supplier: Restek

The Rt®-βDEXcst columns are specially designed for the fragrance industry and pharmaceutical applications.

Supplier: Restek

Application-specific columns for blood alcohol analysis - achieve baseline resolution in less than three minutes.

Supplier: Restek

Polar phase; Carbowax polyethylene glycol

Supplier: Thermo Fisher Scientific

Silicon dioxide 99.9%, powder 1,5 µm

Supplier: MACHEREY-NAGEL

Unmodified HPTLC silica layers for HPTLC.

Supplier: MACHEREY-NAGEL

Unmodified standard silica layers with "High Definition" properties for TLC.

Supplier: USP

USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.

Supplier: Avantor

Avantor® Hichrom, Linear 2-ways Glass Press-Fit Connectors for fused silica GC columns, O-Ø 0,25 - 0,80 mm, Glass

Supplier: MACHEREY-NAGEL

These unmodified standard silica layers for TLC are available as glass plates with or without fluorescent indicator.

Supplier: MACHEREY-NAGEL

Unmodified standard silica layers with concentrating zone for TLC.

Supplier: Thermo Fisher Scientific

Silicon dioxide ≥99.995% (metals basis), sputtering target, Ø 50.8 mm (2.0 in), Thickness: 3.18 mm (0.125 in)

Supplier: Thermo Fisher Scientific

Silicon dioxide ≥99.995% (metals basis), sputtering target, Ø 50.8 mm (2.0 in), Thickness: 6.35 mm (0.250 in)

Supplier: VWR Chemicals

10% emulsion of a polydimethylsiloxane fluid, silica filler and non ionic emulsifier.

Supplier: Thermo Orion

Orion™ AQUAfast™ Auto-Test Ampoule Reagents can be used with the Orion™ AQUAfast™ AQ4000 colorimeter to simplify sample preparation and tests.

Supplier: Bel-Art Products, a Part of SP

Convenient, easy to handle packs filled with moisture absorbing silica gel beads are available in multiple sizes to fit most desiccators.