Modified Silica Gels By chemically bonding organosilane groups to silica gel, the surface polarity can be dramatically modified to produce chromatographic media with unique separation properties. Use of functionalized silica can complement bare silica, providing alternative resolution or separation of difficult compounds.
A new lignan bombasinol A (1), together with three known compounds was obtained from the ethanol (95%) extract of roots of Bombax ceiba L. through its being
Dongguan ZheRunTai Silicone Technology Co., Ltd. is a professional manufacturer focusing on silica gel technology products integrating R&D, design, production, sales and service. ZheRuntai is mainly engaged in the design and production of silica gel.
The supernatants were incubated in 96-well plates for 2 h, and the plates were washed three times with washing buffer (25 mM Tris-buffered saline, pH 7.4). Anti-interleukin 1α (anti-IL-1α) or anti-IL-8 conjugate (R&D Systems, Minneapolis, MN) was added and incubated for 1 h at room temperature. The plate was then washed three times.
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The QIAamp MinElute Virus Spin Kit simplifies isolation of viral RNA and DNA from plasma, serum, and cell-free body fluids with a fast spin-column procedure. No phenol–chloroform extraction is required. Nucleic acids bind specifically to the QIAamp MinElute silica-gel
The hepatitis B virus (HBV) belongs to the family of hepadnaviruses (hepatotropic DNA viruses) and causes acute and chronic infections of the liver and is responsible for 1.2 million deaths annually. 1 Although anti-HBV drugs now available have improved the quality of the lives of HBV patients, development of drug resistance has prompted the search for new anti-HBV agents.
Sophorolipids, Microbial Glycolipids with Anti-Human Immunodeficiency Virus and Sperm-Immobilizing Activities. hexyl alcohol, and silica gel were obtained from Sigma-Aldrich. All alcohols were distilled and stored over activated 4-Å molecular sieves prior to use.
MiniPax® absorbent packets indicating silica gel, weight 5 g (desiccant), L × W 1 in. × 2 5/8 in.; find Aldrich-Z163589 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich.
An office's shipping room is meant to be a highly functioning microcosm. In order to achieve a properly running mail environment, it's essential to stock up on necessary shipping supplies and packing materials, so deliveries stay on schedule and employees remain safe.For quickly putting together large pallets for shipment, consider purchasing strapping materials and twine.
The QIAamp Virus BioRobot MDx Kit simplifies isolation of viral RNA and DNA from cell-free body fluids with a fast automated 96-well–plate procedure. No phenol–chloroform extraction is required. Nucleic acids bind specifically to the QIAamp silica-gel membrane while contaminants pass through.
TLC Analysis of Ingredients in Anti-Epileptic Agents on HPTLC Silica Gel 60 RP-18 WF 254s with concentrating zone
Silica is the mineral SiO 2, found in many forms including sand, quartz and glass. Silica Gel is a synthetic, hydrated form of Silica, and should not be confused with crystalline or fumed silica. The largest buyer of this particular silica is McCormick Seasonings. Being edible, it is used to "Bulk out" powdered spices and seasonings.
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With QIAGEN silica gel membrane purification, there are no time-consuming phenol-chloroform extractions, or alcohol or PEG precipitations. QIAGEN silica gel membrane technology also avoids the handling inconveniences of loose silica resins or slurries and the problem of silica carryover which can interfere with downstream applications.
Jun 14, 2011 · The anti-influenza virus principle was isolated from the hexane-soluble fraction, through solvent fractionation, repeated silica gel column chromatography, and reversed-phase HPLC. The major active principle was a volatile substance that was identified as a sesquiterpene, patchouli alcohol (1), on the basis of its spectral analyses.