75037 Results for: "Silica Flour"
ISAspher HPLC Columns, Silica
Supplier: ISERA
HPLC column of the ISAspher line guarantee the highest possible reliability in a wide range of applications.
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XCORE UHPLC Columns, Silica
Supplier: ISERA
Ultra-fast separation at moderate pressure with state-of-the-art core shell technology particles in XCORE columns.
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Silica standard solution, VHG
Supplier: LGC Standards PROMOCHEM
Silica standard, SiO₂, 1000 mg/l, VHG, Matrix: H₂O, Application: Ion chromatography standards
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Silicon dioxide ≥99.5% (metals basis)
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.
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VWR®, TLC Glass Plates, Silica, Unmodified Layers
Supplier: VWR Collection
These TLC glass plates are suitable for easy and quick sample applications.
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VWR®, HPTLC Glass Plates, Silica, Unmodified Layers
Supplier: VWR Collection
These HPTLC glass plates use an optimised particle size which results in better separation efficiency.
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Silica gel, TLC high purity grade, with gypsum binder
Supplier: Thermo Fisher Scientific
This TLC high purity grade silica gel with gypsum binder is used for thin layer chromatography plate preparation.
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HPTLC plates, nano silica gel 60, modified layers, Nano-SIL DIOL
Supplier: MACHEREY-NAGEL
Diol-modified HPTLC silica layers available as glass plate with fluorescent indicator. Recommended for steroids, pesticides and plant constituents;
for critical separations an alternative to silica, since it is less sensitive to the water content of the environment; leads to more reproducible results compared to silica.
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NANOCOLOR® Photometric Standard Test Kit for Silica
Supplier: MACHEREY-NAGEL
Photometric test kit for the determination of silica in water samples.
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VWR®, HPTLC Glass/Aluminium Plates, Silica, Modified Layers
Supplier: VWR Collection
Modified silica layers are, depending on the modification, suitable for polar to unpolar eluents or eluent mixtures.
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TLC and GLP plates, silica gel 60, unmodified layers, glass backed
Supplier: Merck
TLC plates, unmodified silica gel 60
Merck silica gel 60 has a unique polymeric binder that results in a uniform, hard surface that will not easily crack or blister. This smooth, extremely dense plate coating ensures narrow bands and maximum separation efficiency with the lowest background noise. Layer thickness 250 μm and particle size of 10 to 12 µm. Two inorganic fluorescent indicators for UV detection of colourless substances.
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Column chromatography sorbents, silica
Supplier: MACHEREY-NAGEL
Silica gel adsorbents for column chromatography.
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Plasmid DNA buffers
Supplier: OMEGA BIO-TEK
Solution 3, neutralisation buffer for silica spin column methods
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Silica Gel, TLC High Purity Grade, without Binder, with Fluorescent Indicator
Supplier: Thermo Fisher Scientific
This TLC high purity grade silica gel without binder, with fluorescent indicator is used for thin layer chromatography plate preparation.
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VWR®, Glass Beads for Grinding and Homogenisation
Supplier: VWR Collection
Small beads suitable for use with vortex mixers and tube homogenisers.
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HPTLC plates, silica gel 60, unmodified layers, Nano-ADAMANT
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.
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HPTLC and TLC plates, silica gel 60, MS-grade
Supplier: Merck
Coupling TLC plates to mass spectrometry is a new field of high interest, which will contribute strongly to the progress of planar chromatography. The MS-grade plates are much cleaner than standard TLC/HPTLC plates providing higher sensitivity and reduced background signals. This allows trace analysis with mass spectrometry detection in lower nanogram range.
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Fused silica tubing, Upchurch Scientific®
Supplier: UPCHURCH SCIENTIFIC
Made from high quality, polyimide-clad fused silica.
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Base materials for microbiology media
Supplier: Roth Carl
Peptone from soya beans is gained from papainic digestion of soya bean flour. Peptone tryptic digest is produced by proteolytic digestion of casein with trypsin-rich pancreas extract.
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Silica gels for preparative chromatography, standardised
Supplier: MERCK PRODUCTION CHEMICALS
Geduran® Si 60, 40 - 63 µm
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Silicon dioxide 200-500 µm
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.
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J.T.Baker® BAKERBOND®, Narrow pore prep packings
Supplier: Avantor
Packing materials for low pressure preparative and flash chromatography. Chemically stable from pH 2 to 8,5. They are not damaged by the use of cleaning and antimicrobial agents such as sodium azide, dilute aqueous solutions of trifluoroacetic acid and acetic acid, organic solvents such as methanol and acetonitrile, and concentrated aqueous solutions of salts and urea. The packings feature irregular-shaped particles.
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VWR®, TLC Glass Plates, Silica HP, Unmodified Layers
Supplier: VWR Collection
These TLC glass plates have an excellent separation efficiency due to an optimised particle size distribution.
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Silica gel, TLC high purity grade, with gypsum binder and fluorescent 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.
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Visual comparator test kits, silica
Supplier: Hach
Qualitative results using traditional colour comparator disc methods.
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HPLC columns, Hypersil GOLD™ Silica
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.
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HPTLC plates, silica gel 60, unmodified layers, Nano-DURASIL
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.
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TLC plates, silica gel 60, modified layers, glass backed
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.