78312 Results for: "Silica Flour"

Supplier: Restek

Base-deactivated spherical silica is useful for normal-phase or HILIC separations.

Supplier: Restek

This fused silica tubing is commonly used as guard columns, transfer lines or for long retention gaps.

Supplier: Agilent

Universal Bare Fused-Silica Capillaries have a window, 750 mm effective length and 363 μm Ext.Ø, fitting into any CE instrument.

Supplier: MP Biomedicals

MP EcoChrom™ SILICA is used as a suspending and thickening agent in pharmaceutical.A silica-based aerogel was used in the Stardust spacecraft to collect extraterrestrial particles. Silica is also used in the extraction of DNA and RNA due to its ability to bind to the nucleic acids under the presence of chaotropes. As hydrophobic silica it is used as a defoamer component. In hydrated form, it is used in toothpaste as a hard abrasive to remove tooth plaque. SiO2 has a number of distinct crystalline forms (polymorphs) in addition to amorphous forms. In the majority of silicates, the Si atom shows tetrahedral coordination, with 4 oxygen atoms surrounding a central Si atom.

MP EcoChrom™ Silica, the chemical compound silicon dioxide, also known as silica (from the Latin silex), is an oxide of silicon with the chemical formula SiO2 with a mean pore size of 60Å and particles size of 200-500μm. MP silica are free of particles outside the standard range. The irregular shape of MP Silica permits the easy packing of column permeability and plate number. They allow easy switching from one sieve cut to another, offering an easy way to change the chromatographic methods. It has been known for its hardness since ancient times. Silica is most commonly found in nature as sand or quartz, as well as in the cell walls of diatoms.

Supplier: Bohlender

Silica gel with colour indicator.

Supplier: Thermo Fisher Scientific

This TLC high purity grade silica gel with gypsum binder and fluorescent indicator is used for thin layer chromatography plate preparation.

Supplier: Merck

Geduran® Si 60, 63 - 200 µm

Supplier: Thermo Orion

Orion™ AQUAfast tablet reagents perform colorimetric measurements of common water parameters with convenient, rapidly dissolving tablets.

Supplier: WATERS

Atlantis HILIC silica columns are used in combination with high organic mobile phases (>80% acetonitrile) to provide retention of analytes that are simply too polar to be retained by reverse-phase chromatography.

Supplier: Merck

RP-2, RP-8 and RP-18 are based on silica gel 60 modified with aliphatic hydrocarbons. The chain length, in combination with the degree of modification, defines the ability to tolerate water in the solvent system and strongly affects retention. Migration time increases in the order RP-2, RP-8 and RP-18 using the same solvent composition. RP-8 and RP-18 can be run with up to 60% water in the solvent system.

Supplier: Restek

Rtx®-1 F and F columns are tailored to match the selectivity required in the industry, while offering excellent thermal stability.

Supplier: Hach

Qualitative results using traditional colour comparator disc methods.

Supplier: Thermo Fisher Scientific

This unbonded, highly pure, base-deactivated silica media efficiently separates non polar and moderately polar organic compounds by normal phase chromatography.

Supplier: Lovibond

CHECKIT® Comparator is a compact and handy colorimetric unit which is suitable for both mobile and static analysis work. Supplied with a generous number of different colour scales, it provides the basis for a comprehensive, easy-to use colorimetric analysis system.

Supplier: VWR Collection

These HPTLC glass plates have an excellent separation efficiency due to an optimised particle size distribution.

Supplier: Merck

Thin-layer chromatography plates (TLC), TLC, MS-grade, Coating material: RP-18 (C18) modified silica gel, Backing material: Aluminium, Fluorescent indicator: F254s, Plate size: 50×75 mm, Layer thickness: 100 µm, Pore size: 60 Å

Supplier: MACHEREY-NAGEL

These unmodified HPTLC silica layers are available as glass plates with or without fluorescent indicator. The narrow fractionation of the silica particles features sharper separations, shorter developing times, and an increased detection sensitivity compared to DURASIL plates.

Supplier: Agilent

The micro ECD has a detection zone volume 10 times smaller than any other ECD with replicable inlet liner to decreasing column contamination of the cell.

Supplier: Merck

The LuxPlate® range of high fluorescence TLC plates contains an increased amount of fluorescent dye making it easier to identify small amounts of isolated material. Furthermore, the amount of binder added is elevated, resulting in a significantly brighter TLC plate with an even more stable and robust surface.

Supplier: STROEBEL GMBH

These robust, compact and versatile desiccant bags are supplied with silica gel used for pharmaceutical products and test tubes, as well as for clinical diagnoses and electrical tools.

Supplier: Merck

Ascentis® Express HILIC high-speed, high-performance liquid chromatography columns are based on Fused-Core® particle design. The Fused-core particle provides a thin porous shell of high-purity silica surrounding a solid silica core.

Supplier: Merck

Merck Multiformat plates are pre-scored glass plates for easy breaking into various sizes. The plates use the same silica coating as the corresponding TLC or HPTLC plate delivering chromatograms that are identical to those of the non scored plates.

Supplier: Merck

TLC plates, that feature a smooth and extremely dense plate coating, ensuring narrow bands and maximum separation efficiency with the lowest background noise. Flexible plastic sheets can easily be cut to match individual separation requirements.

Supplier: Apollo Scientific

Silicon dioxide 99,999%

Supplier: Agilent

QuEChERS Bulk Salts and Sorbents make sample prep easy.

Supplier: Thermo Fisher Scientific

Polyethyleneimine, on silica beads 20-40 mesh anion exchange resin

Supplier: Avantor

DPTMDS deactivated fused silica retention gap / precolumn. General purpose deactivation for both apolar and polar solvents.

Supplier: Merck

This range of plates uses an optimised Merck silica gel 60 with a particle size of only 5 to 6 µm, which results in higher packing density and a smoother surface, therefore reducing band diffusion. Less sample is required, 0,1 to 0,5 µl than classic TLC.

Supplier: Merck

Monolithic silica technology: A new age in chromatography. Chromolith® columns are based on silica so existing methods can be easily transferred with only minimal investment in new method development work. 'Sol-Gel' technology allows highly porous monolithic rods of silica to be formed. These feature a bimodal pore structure provides a unique combination of macropores and mesopores.

Supplier: Avantor

CW deactivated fused silica retention gap / precolumn. Deactivation mainly for polar solvents.