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  • resins
  • Thus, the separation and purification qualities of QIAGEN resin, as well as its ease of use surpass those of conventional anion-exchange resins. (qiagen.com)
  • concentrations
  • Plasmid DNA remains tightly bound to the DEAE groups over a wide range of salt concentrations (see figure Separation of nucleic acids at neutral pH on QIAGEN anion-exchange resin ). (qiagen.com)
  • In contrast, conventional anion-exchangers, based on cellulose, dextran, or agarose, have separation ranges only up to 0.4 M salt, so that binding and elution of all substances is limited to a narrow range of salt concentrations. (qiagen.com)
  • resin
  • QIAGEN-tips contain a unique, patented anion-exchange resin which eliminates the need for expensive equipment and reagents such as ultracentrifuges, HPLC/FPLC‚ or CsCl. (qiagen.com)
  • The key advantage of QIAGEN anion-exchange resin arises from its exceptionally high charge density. (qiagen.com)
  • The separation range of QIAGEN resin is extremely broad, extending from 0.1 M to 1.6 M salt (see figure Separation of nucleic acids at neutral pH on QIAGEN anion-exchange resin ), and DNA can be efficiently separated from RNA and other impurities. (qiagen.com)
  • SDS and other anionic detergents interfere with the binding of nucleic acids to QIAGEN resin by competing for binding to the anion-exchange groups. (qiagen.com)
  • biocide
  • This application note shows the determination of phosphate, HEDP (etidronic acid) and pyrophosphate in a biocide sample using anion chromatography with conductivity detection after sequential suppression. (selectscience.net)
  • polymers
  • Utilization of conducting nanostructured polymers as well as choice of a suitable anion dopant type are among the key features of the research that has led to the accurate nanosensor which maintains favorable performance at low temperatures and offers a conveniently short response time," Sajjad Pirsa pointed out. (thefreedictionary.com)
  • Definition
  • Johnny discovered Anion, we liked the word itself as well as the definition associated with it, which relates to our negative and ugly music, so it was a perfect fit," says bass player Cole Benoit. (beatroute.ca)
  • processes
  • concentrations of the nitrile anion must be high to mitigate processes involving self-condensation, such as the Thorpe-Ziegler reaction. (wikipedia.org)
  • exceptionally
  • Use a strong anion-exchange column with the Thermo Scientific™ DNASwift™ SAX-1S Oligonucleotide Column that provides exceptionally high resolution for the purification of oligonucleotides. (fishersci.com)
  • The key advantage of QIAGEN anion-exchange resin arises from its exceptionally high charge density. (qiagen.com)
  • reactions
  • The mechanisms of reactions involving nitrile anions depend primarily on the nature of the electrophile involved. (wikipedia.org)
  • Nitrile anions can also be involved in Michael-type additions to activated double bonds and vinylation reactions with a limited number of polarized, unhindered acetylene derivatives. (wikipedia.org)
  • The major problem associated with alkylation reactions employing nitrile anions is over-alkylation. (wikipedia.org)
  • These intermediates almost always react with α selectitivity in alkylation reactions, the exception to the rule being anions of ortho-tolyl nitriles. (wikipedia.org)
  • The primary difficulty for alkylation reactions employing nitrile anions is over-alkylation. (wikipedia.org)
  • Except in the case of the very few of them that have been prepared by classical reactions of aqueous chemistry, such as K 2 H 5 (PO 4 )(P 2 O 7 ) and K 2 H 8 (PO 4 )2(P 2 O 7 ), there are no rules for the chemical preparation of these mixed-anion phosphates. (springer.com)
  • known
  • Today more than 20 phosphates containing two kinds of phosphoric anions having different degrees of condensation are known. (springer.com)
  • Studies
  • IR spectroscopy studies have demonstrated the existence of at least two tautomeric forms of the nitrile anion (see above). (wikipedia.org)
  • Table
  • The main crystallographic data for monophosphate-diphosphates are presented in Table 5.1, and those for mixed-anion phosphates containing anions with higher degrees of condensation are given in Table 5.2. (springer.com)
  • unique
  • QIAGEN-tips contain a unique, patented anion-exchange resin which eliminates the need for expensive equipment and reagents such as ultracentrifuges, HPLC/FPLC‚ or CsCl. (qiagen.com)
  • forms
  • Doctoral student Semin Lee is the lead author of the article, "A pentagonal cyanostar macrocycle with cyanostilbene CH donors binds anions and forms dialkylphosphate (3)rotaxanes. (innovations-report.com)