66568 výsledků pro: "Silica Flour"

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: Honeywell Chemicals

With indicator function, 1/3 TE, bag with ~10 g, crystalline

Supplier: Thermo Fisher Scientific

Silica standard solution, 1000 μg/ml, Specpure®, Obsahy: SiO₂, Aplikace: Standardy environmentální

Supplier: MACHEREY-NAGEL

Unmodified HPTLC silica layers available as glass plates with or without fluorescent indicator. The narrow fractionation of the silica particles features theoretical plate heights, which are one order of magnitude smaller than on standard silica layers. Thus, Nano-ADAMANT has the advantage of sharper separations, shorter developing times, and increased detection sensitivity with equal selectivity.

Supplier: Thermo Orion

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

Supplier: Thermo Fisher Scientific

Re-use after being saturated with water by heating to 121 °C for approximately 8 hours

Supplier: Thermo Fisher Scientific

Silica gel 60 is used as carriers, processing aids, anti-caking and free-flow agents in animal feed. Defoamer applications such as paint, food, paper, textile and other industrial applications. Synthetic silicon dioxides are used as a rheology control agent in plastics. It is also used in dry column chromatography without applied pressure (gravity pulled).

Supplier: Thermo Fisher Scientific

Silica gel is used in column chromatography without applied pressure (gravity pulled). It is used as an adsorbent in various applications and removing impurities. It is used as stationary base in column chromatography.

Supplier: Agilent

QuEChERS Bulk Salts and Sorbents make sample prep easy.

Supplier: Merck

Our NH₂, CN- and DIOL-modified silica sorbents are less polar then conventional silica phases, making them ideal for separating hydrophilic or charged substances. Our moderately polar cyano- and diol-modified silica plates can be used for both normal phase and reversed phase systems. An alternative to PEI cellulose, amino-modified NH₂ plates provide weak basic ion exchange characteristics with special selectivity for charged compounds.

Supplier: Avantor

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

Supplier: VICI JOUR RESEARCH

These fittings are designed for 360 µm tubing (metal, fused silica, PEEK or fused silica).

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: MACHEREY-NAGEL

Unmodified HPTLC silica layers for HPTLC.

Supplier: MACHEREY-NAGEL

Photometric test kit for the determination of silica in water samples.

Supplier: Lovibond

Test kit, Silica PR tablet, Rozsah: 0,05 – 4 mg/l SiO₂, Pro jednotku: MD600

Supplier: Thermo Fisher Scientific

These quartz discs are manufactured by fusing naturally occurring crystalline silica.

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: Merck

Drying pearls changes colour from orange to colorless after moisture absorption.

Supplier: MACHEREY-NAGEL

Unmodified standard silica layers for TLC.

Supplier: Avantor

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

Supplier: Avantor

Avantor® ACE® Excel® Silica columns provide great reproducibility and column lifetime. These stainless steel columns are available in a wide range of particle sizes and dimensions from capillary to preparative.

Supplier: Merck

Highly robust plates with gypsum as binder, fully compliant with international pharmacopoeia (Ph. Eur. and USP).

Supplier: Avantor

HMDS deactivated fused silica retention gap / precolumn. Deactivation mainly for apolar solvents.

Supplier: MP Biomedicals

Silica is highly porous and has a number of distinct crystalline forms (polymorphs) in addition to amorphous forms. It is used as a suspending and thickening agent in pharmaceuticals. It 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.

Supplier: CAMAG

TLC precoated sheets, silica gel 60.

Supplier: Avantor

Desky pro tenkovrstvou chromatografii (TLC), J.T.Baker®, Potahový materiál: Silica gel

Supplier: Thermo Fisher Scientific

Silicon(IV) oxide is used in the manufacture of glass for windows, drinking glasses, beverage bottles and many other materials. Optical fibers for telecommunication are made from silica. It is also used as a raw material for many ceramics such as earthenware, stoneware and porcelain. In addition, silica is a common additive in the production of foods and pharmaceutical products.

Supplier: VWR Chemicals

This product adsorbs water vapour, so maintaining a dry environment for your products. When the gel's adsorption capacity is exhausted the colour changes from orange to colourless. The product can be regenerated back to an orange colour by heating in a drying oven at 120 to 140 °C for approximately 3 hours and then re-used. It is suitable for numerous drying applications, although it is not recommended for strongly acidic or strongly alkaline compounds.