• The present work reports the development of ion chromatography conductivity based detection analytical method for the determination of some inorganic anions (chloride, sulfate and phosphate) in vegetable oils. (ucr.ac.cr)
  • Use this chloride-form resin for gravity or low-pressure chromatography. (bio-rad.com)
  • For the separation of ionic compounds, ion-exchange separation modes and for inorganic anions or cations, ion chromatography can also be used. (sigmaaldrich.com)
  • Deliver excellent results for fast isocratic separations of inorganic anions in diverse matrices with the Thermo Scientific™ Dionex™ IonPac™ AS14 Carbon Eluent Anion-Exchange Column. (thermofisher.com)
  • This universal column for the separation of inorganic anions delivers improved peak resolution and retention of fluoride in applications performed previously with the Dionex IonPac AS4A, AS4A-SC and AS12A columns, however, the Dionex IonPac AS22 Carbonate Eluent Anion-Exchange column, an advanced carbonate eluent column, is recommended for fast analysis of inorganic anions. (thermofisher.com)
  • Hydrophilic interaction liquid chromatography (HILIC) provides an alternative approach to effectively separate small polar compounds on polar stationary phases. (springer.com)
  • Hydrophilic interaction liquid chromatography has established itself as the separation mode of choice for uncharged highly hydrophilic and amphiphilic compounds that are too polar to be well retained in RP-LC but have insufficient charge to allow effective electrostatic retention in ion-exchange chromatography. (springer.com)
  • Trifluoroacetic acid may be used as a mobile phase additive for the analysis of basic compounds in biological samples using hydrophilic interaction liquid chromatography-electrospray ionization coupled to tandem mass spectrometry (HILIC-ESI/MS/MS) and reversed-phase liquid chromatography coupled to tandem mass spectrometry (RP-LC-MS/MS). (sigmaaldrich.com)
  • For separation of polar compounds hydrophilic interaction chromatography (HILIC) and normal-phase chromatography are suitable as well, with HILIC being the preferred method. (sigmaaldrich.com)
  • An ion-exchange monomer including an anion exchange group and a cation exchange group, 2-methacryloyloxyethyl- phosphoryl choline (MPC) was introduced on the surface of uniformly sized, hydrophilic macro-porous polymer particle. (go.jp)
  • Normal or reversed-phase liquid chromatography can be used for analysis. (springer.com)
  • In normal phase liquid chromatography (NP-LC), the stationary phase is more polar than the mobile phase. (springer.com)
  • For historical reasons, it has been reported that HILIC is a variant of normal phase liquid chromatography, but the separation mechanism used in HILIC is more complicated than that in NP-LC. (springer.com)
  • Sulfate, bromide, acetate and formate concentrations were determined with a Dionex DX-500 Ion Chromatograph, AS11 column, 5-50% sodium hydroxide gradient (Dionex Corporation, Sunnyvale CA) in the Stanford Environmental Measurements Facility. (bco-dmo.org)
  • Opposite electric charges are pulled towards one another by electrostatic force , so cations and anions attract each other and readily form ionic compounds . (detailedpedia.com)
  • The labeled oligosaccharides are analysed by anion exchange HPLC on a LudgerSep C3 column with fluorescence detection. (qa-bio.com)
  • NP-LC has been widely used to separate various compounds, from nonpolar to highly polar compounds (note that chromatography was first introduced as a method used in separation science). (springer.com)
  • For example, it is suitable for analyzing compounds in complex systems that always elute near the void in reserved-phase chromatography. (springer.com)
  • A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds. (lookformedical.com)
  • New mercury organic compounds with 1-3 metal centers and different substituants were synthesized as anion-selective ionophores. (keyopinionleaders.com)
  • A cation is a positively charged ion with fewer electrons than protons while an anion is a negatively charged ion with more electrons than protons. (detailedpedia.com)
  • In correspondence with Faraday, Whewell also coined the words anode and cathode , as well as anion and cation as ions that are attracted to the respective electrodes. (detailedpedia.com)
  • Removal of the electron gives a cation (left), whereas the addition of an electron gives an anion (right). (detailedpedia.com)
  • The hydrogen anion , with its loosely held two-electron cloud, has a larger radius than the neutral atom, which in turn is much larger than the bare proton of the cation . (detailedpedia.com)
  • We recommend using LudgerSep C buffer (500 mM ammonium formate buffer pH 9, 20 % acetonitrile v/v) rather than lower pH solvents because this higher pH ensures that all anionic glycans (sialic acids, sulphated and phosphorylated sugars) are in a negatively charged state. (qa-bio.com)
  • Samples are applied in water and are typically eluted with a sodium acetate or ammonium formate aqueous salt gradient. (qa-bio.com)
  • Choose analytical grade Bio-Rex 5 Resin for intermediate strength anion exchange. (bio-rad.com)
  • LudgerSep C3 anion exchange columns contain particles with a macroporous polymeric anion exchange coating optimized for anion exchange chromatography of complex glycan mixtures. (qa-bio.com)
  • The figure shows the optimized separation of ITP ( Inosine 5'-monophosphate) , IDP ( Inosine 5'-diphosphate) and IMP ( Inosine 5'-triphosphate) in the order of increasing Phosphate content similar to anion exchange. (mtc-usa.com)
  • Developed as a replacement for weak anion exchange columns, the C3 columns deliver reliable, reproducible separations. (qa-bio.com)
  • Shodex columns can be used in the ion chromatography instruments of other manufacturers, for example Metrohm and Thermo Fisher Dionex. (shodex.de)
  • Notre objectif est de comprendre la biologie de ces bactéries et de traduire cette connaissance en applications dans la médecine, la gestion environnementale, et les énergies renouvelables. (cea.fr)
  • The LudgerSep C3 anion exchange column is a highly sensitive anion exchange column designed for charge-based analysis and purification of 2-AB and 2-AA labeled glycans. (qa-bio.com)
  • Picomole quantities (or less depending on the sensitivity of the detector) of oligosaccharides may be analysed by fluorescent labeling with 2-AB or 2-AA , followed by separation using the LudgerSep C3 strong anion exchange column. (qa-bio.com)
  • The pertechnetate anion is similar to the permanganate anion but is a weaker oxidizing agent . (en-academic.com)
  • It was found that the salting-out ability of different salts may also be related to the Gibbs energy of hydration of the ions, and the order of salting-out ability of the anions follows the Hofmerister series for the strength of the kosmotropic salts. (acs.org)
  • The second step is the enrichment and clean-up of the labeled glycopeptides using a hydrophilic interaction liquid chromatography (HILIC) cartridge. (ludger.com)
  • In total, 174 samples were analyzed via LC-MS/MS using zwitterionic hydrophilic interaction liquid chromatography (ZIC-HILIC). (biomedcentral.com)
  • This instrument is also capable of analysis for dilute organic acids such as acetate or formate, components of naturally acid brown water lake systems. (rpi.edu)
  • Esters derived from the simplest carboxylic acids are commonly named according to the more traditional, so-called "trivial names" e.g. as formate, acetate, propionate, and butyrate, as opposed to the IUPAC nomenclature methanoate, ethanoate, propanoate, and butanoate. (wikipedia.org)
  • The metabolism of hydroxyproline was examined by a combination of HPLC and ion chromatography/mass spectrometry techniques. (nih.gov)
  • Liquid chromatography coupled with mass spectrometry via electrospray ionization has become the most common approach, although several problems with the chromatographic (e.g. limited retention and poor peak shape) and mass spectrometric (e.g. various types of quasi-molecular ions and multiple reaction monitoring transitions) behavior of paraquat are described. (biomedcentral.com)
  • Methanol intoxication can cause severe cellular dysfunction and death, [ 1 ] primarily due to the accumulation of organic acids and their anions produced by its metabolism. (medscape.com)
  • The desired process is an ion- exchange equilibrium in which the anions on the resin are displaced by the eluent anion. (chempedia.info)
  • The digestion hydrolyzes all common sugars, starch, and starch derivatives down to their monosaccharide components, glucose, fructose, and galactose, which are then quantitated by high-performance anion-exchange chromatography with photodiode array detection. (megazyme.com)
  • The anion gap is increased secondary to high lactate and ketone levels. (medscape.com)
  • Treatment can include administration of ethanol or fomepizole, both inhibitors of the enzyme alcohol dehydrogenase to prevent formation of its metabolites, and hemodialysis to remove methanol and formate. (medscape.com)
  • The extracts were assayed for glucose, ['*CJDG, and acidic and nonacidic C-labeled metabolites of ['*C}DG by hexokinase-catalyzed phosphorylation and chromatography on Dowex-1-formate columns, as described in Materials and Methods. (nih.gov)
  • The stabilities of these acid-labile metabolites during Dowex-l-formate column chromatography were not tested, but significant degradation during the water washes of the columns to recover the nonacidic compounds would have attenuated the differences be- tween the PCA and ethanol extracts. (nih.gov)
  • In addition to a history of exposure, increases in serum osmolal and anion gaps can be clues to its presence. (medscape.com)
  • Definitive diagnosis of methanol toxicity requires a confirmed increase in the serum methanol level with gas chromatography. (medscape.com)
  • Zakharov S, Kurcova I, Navratil T, Salek T, Komarc M, Pelclova D. Is the Measurement of Serum Formate Concentration Useful in the Diagnostics of Acute Methanol Poisoning? (medscape.com)
  • Choose analytical grade Bio-Rex 5 Resin for intermediate strength anion exchange. (bio-rad.com)
  • Tests under study to detect methanol or its metabolite formate might facilitate the diagnosis of this poisoning. (medscape.com)
  • As a result of physico-chemical experiments, morphological measurements of the cathode, electrochemical experiments carried out with a complete zero-gap cell operating under alkaline conditions, and gas-chromatographic (GC) analyses of the cathode outlet stream, we determined that methyl formate, ethanol, and propanol were mainly obtained at a rate of 116.3 μmol gcat−1h−1 during operation at 2.2 V. (eco2fuel-project.eu)
  • Using SIELC's newly introduced BIST™ method, Paraquat and Diquat, which protonate in water, can be retained on a positively-charged anion-exchange BIST™ B column. (sielc.com)
  • Method for the Direct Determination of Available Carbohydrates in Low-Carbohydrate Products Using High-Performance Anion Exchange Chromatography. (megazyme.com)
  • If the formed products are gaseous, then the usual way of quantifying them is the use of online gas chromatography (GC), a method that is not compatible with open RDE cells. (acs.org)
  • and then separated by Dowex-1-formate column chro- matography, significantly (p (nih.gov)
  • Removal of mPEG-OH requires the use of preparative ion exchange column chromatography, which is time consuming and expensive. (allindianpatents.com)
  • H2 was formed by a hydrogenase rather than by cleavage of formate, and 13C-NMR and 14C-exchange reaction data indicated that formate was produced by CO2 reduction, not by a cleavage of pyruvate. (nih.gov)
  • The occurrence of system peaks will be discussed, taking an anion exchanger in equilibrium with a benzoic acid (BA) mobile phase as an example. (chempedia.info)