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  • molecular weight
  • The GPC Quattro is designed for the clean-up of complex animal tissues, food products and environmental samples by separating high molecular weight matrixes such as lipids, carbohydrates, pigments, etc., from analytical samples. (selectscience.net)
  • reagents
  • Phenol oxidation with hypervalent iodine reagents leads to the formation of quinone-type products or iodonium ylides, depending on the structure of the phenol. (wikipedia.org)
  • analysis
  • The coupling of chromatography with MS is a well developed chemical analysis strategy dating back from the 1950s. (wikipedia.org)
  • This leads to virtually monodisperse polymer products, which have many applications in material analysis and product design. (wikipedia.org)
  • Blue Devil Film is used for blotting, sequencing, chemiluminescent autoradiography (ecl) and gel shift analysis. (wikipedia.org)
  • Blue Devil provides film is used for autoradiography, Western blotting, sequencing, chemiluminescence and gel shift analysis. (wikipedia.org)
  • concentrations
  • The pattern of 5-HT reaction products separated by TLC was dependent on the H 2 O 2 concentrations used. (springer.com)
  • However, low concentrations of a radical scavenger establish thermodynamic control and provide access to 6-endo products-not via 6-endo cyclization, but by 5-exo cyclization followed by 3-exo closure and subsequent fragmentation (Dowd-Beckwith rearrangement). (wikipedia.org)
  • Whereas at high concentrations of the exo product is rapidly trapped preventing subsequent rearrangement to the endo product Aryl radicals exhibit similar reactivity. (wikipedia.org)
  • solvent
  • Reactions can be carried out in nearly any solvent, and products are often synthetically useful compounds that can be carried on using existing functionality or groups introduced during radical trapping. (wikipedia.org)
  • often
  • Often associated with consumer products made from cranberries, grape seeds or red wine, proanthocyanidins were once proposed as factors inhibiting urinary tract infections in women, but this research has been refuted by expert scientific committees. (wikipedia.org)
  • Trapping of either product is possible with a suitable reagent, and this method is often employed in tandem with a second process. (wikipedia.org)
  • humans
  • Intermediates are used in different species to form particular substances, but, in humans, the main end-product protoporphyrin IX is combined with iron to form heme. (wikipedia.org)
  • electrophiles
  • Iodonium ylides undergo cycloaddition reactions with unsaturated functional groups, and react with nucleophiles and electrophiles to give substitution products. (wikipedia.org)
  • The products of lateral lithiation react with a variety of electrophiles, including reactive alkyl halides (allylic, benzylic, and primary), carbonyl compounds, silyl and stannyl chlorides, disulfides and diselenides, and others. (wikipedia.org)
  • reaction
  • It is speculated that this stereoselectivity for product 12 is due to the directing influence of the acetate group attached to carbon 6, which migrates during the reaction to carbon 8. (wikipedia.org)
  • 4) Phenolic oxidations may afford different products depending on both the reaction conditions and the structure of the substrate. (wikipedia.org)
  • structure
  • Unfortunately, in 42% of the product, the alkyl chain was not installed, and instead the aldehyde was reduced with an accompanying acetate migration to form a triacetate (structure 14). (wikipedia.org)
  • The structure of this product is 3-Ο-β-lycotetraosyl (22S,23S,25S)-23-acetoxy-3β,27-dihydroxy-5α-spirosolane 27-Ο-β-D-glucopyranoside. (wikipedia.org)
  • stable
  • Stabilizing the initially formed radical with electron-withdrawing groups provides access to more stable 6-endo cyclization products preferentially. (wikipedia.org)
  • Deprotonation occurs to afford the most thermodynamically stable product. (wikipedia.org)
  • solid-phase
  • Upon the completion of the chain assembly, the product is released from the solid phase to solution, deprotected, and collected. (wikipedia.org)
  • global
  • Genesee Scientific Corporation is a manufacturer and distributor of products to global life science research markets. (wikipedia.org)
  • concentration
  • Essential aspects of binding assays include, but are not limited to, the concentration level of reactants or products (see radioactive section), maintaining the equilibrium constant of reactants throughout the assay, and the reliability and validity of linked reactions. (wikipedia.org)
  • research
  • One feature of Demain's work, according to Microbiology Australia, has been his "ability to undertake fundamental research on systems with clear industrial applications, recognising that biodiscovery is the start of the road that includes strain improvement to achieve levels of product synthesis that warrant further investment to take products into the marketplace. (wikipedia.org)
  • However
  • However, it is often convenient to have the compound dissolved in the organic phase after the last step, so that the evaporation of the solvent yields the product. (wikipedia.org)
  • industrial
  • Industrial enzymes are enzymes that are commercially used in a variety of industries such as pharmaceuticals, chemical production, biofuels, food & beverage, and consumer products. (wikipedia.org)
  • produce
  • In order to produce first-rate products, the starch beads are poured onto plates in a thick layer, and the plates is slowly drawn through a tunnel charged with steam. (wikipedia.org)
  • sample
  • If the probes were not split in this way, the primer sequences at either end would cause the probes to be amplified regardless of their hybridization to the template DNA, and the amplification product would not be dependent on the number of target sites present in the sample DNA. (wikipedia.org)
  • heat
  • For volume substitution, albumin that has been purified from donor plasma and heat treated to reduce possible infectivity is the routine product. (thefreelibrary.com)
  • Tapioca pearls are derived as baked tapioca products, which are obtained from heat treatment of the moist cassava starch in shallow pans. (wikipedia.org)
  • strength
  • Statements a company makes about their product strength are not regulated. (wikipedia.org)
  • The OC percentage measures only the amount of chili oil extract contained in the defense spray, not the strength, pungency or effectiveness of the product. (wikipedia.org)