ion analysis Articles

  • Multiply-charged ion nanobeams

    Due to the strong evolution in the field of nanotechnologies and the continuous miniaturisation of electronic components, multiply-charged ion nanobeams would be a promising tool in this field of research. Either for surface modification or local (nanometre scale) surface analysis purposes, studying the feasibility of such beams is of strong interest. In the present contribution, we present a ...


    By Inderscience Publishers

  • Analysis of Nitrofurans Metabolites by Positive Ion Electrospray LC/MS/MS

    IntroductionNitrofuran antibiotics are veterinary drugs. The use of these in food production is already banned in the United States,Australia, Canada, Japan, Singapore, Bangladesh, and the European Union because of a possible increased cancer-riskthrough long-term consumption.Trace amounts of nitrofurans contamination has been found in warm-water prawns, shrimp, and chicken. ...


  • Group-IV and V ion implantation into nanomaterials and elemental analysis on the nanometre scale

    Novel group-IV and V nanomaterials are produced by newly set-up low energy ion implantation and electron beam annealing (EBA) systems at GNS Science. This review paper introduces the community to GNS's new nanotechnology systems. Three representative examples on the use of the systems for nanotechnology research and development are given for (a) subsurface lead ion implantation into Si resulting ...


    By Inderscience Publishers

  • Analysis of Voglibose in pharmace utical formulat ions by HPLC with post-column derivat izat ion

    Voglibose is an Alpha-Glucosidase inhibitor widely used for the treatment of diabetes. Alpha-glucosidase inhibitors are agents that delay the glucose absorption at the intestinal level and thereby prevent sudden surge of glucose after a meal. Vogilbose is the safest and most effective drug of its class. Since Vogibose has no UV chromophore, post-column derivatization is employed to produce a ...


    By Pickering Laboratories, Inc.

  • Introduction to Ion Exchange Part 1

    IMPURITIES IN WATERWater is often referred to as the 'universal solvent' as it will dissolve small amounts of everything it touches. Water collects or dissolves a variety of mineral salts, organic compounds and suspended solids as it flows over the earth's surface and through the ground. These impurities make water undesirable for use in many applications. It is, therefore, important to ...


  • Analysis of Phenolic Estrogen Mimics in River Water by Negative Ion Electrospray LC/MS/MS

    IntroductionBisphenol A (BPA) is a primary raw material used for the production of polyacrylates, epoxy resin, phenolic resin, andpolycarbonate plastic. 4-Nonylphenol (4-NP) is a degradation product of alkylphenol ethoxylate detergents used inhousehold and industrial cleaning products. Alkylphenol ethoxylate is also widely used as an additive in plastics thatare used for food ...


  • Analysis of Organophosphorus and Organonitrogen herbicides in water using GC/MS with selected ion recording

    Laboratories monitoring trace level pesticides and herbicides by gas chromatography/mass spectrometry (GC/MS) frequently utilize Selected Ion Recording (SIR) techniques to maximize analytical sensitivity for quantification. With analytical standards, precision is limited to a large extent only by the autosampler and other instrumental effects. However, real-world samples pose a greater challenge. ...


    By PerkinElmer, Inc.

  • Multivariate analysis of the transport in an Ion Exchange Membrane Bioreactor for removal of anionic micropollutants from drinking water

    The present study focuses on investigating the effects of biological compartment conditions on the transport of nitrate and perchlorate in an Ion Exchange Membrane Bioreactor (IEMB). In this hybrid process, the transport depends not only on the membrane properties but also on the biological compartment conditions. The experiments were planned according to the Plackett-Burman statistical design in ...


    By IWA Publishing

  • Analysis of Trace Elements and Ions in Ambient Fine Particulate Matter at Three Elementary Schools in Ohio

    ABSTRACT The results from a chemical characterization study of fine particulate matter (PM2.5) measured at three elementary schools in Central and Southeast Ohio is presented here. ...

  • Biosorption of strontium ion by immobilised Aspergillus niger

    Biosorption of strontium by Aspergillus niger immobilised in calcium alginate has been studied. The experimental data showed that immobilised A. niger was effective in removing Sr2+ from aqueous solution. The optimal pH and temperature were 3.0LC and 25LC, respectively. Pseudo second-order model was applicable to all the sorption data over the entire time range. Intraparticle diffusion was not ...


    By Inderscience Publishers

  • Analysis of the effect of zinc ions on activated sludge microbes by random amplified polymorphism DNA (RAPD)

    The effect of zinc ions on activated sludge microbes was investigated. Zinc ions inhibit the degradation and transformation of substances, and acclimation has little effect on the inhibition of ammonia and nitrite transformation. The change of diversity and similarity of the bacterial community acclimated by zinc were analysed by random amplified polymorphism DNA (RAPD). The results showed that ...


    By Inderscience Publishers

  • Water analysis

    A complete tap water analysis includes the determination of the pH value, the alkalinity and the total water hardness. Both the pH measurement and the pH titration by means of a standard pH electrode suffer from several drawbacks. First, the response time of several minutes is too long and, above all, the stirring rate significantly influences the measured pH value. Unlike these standard pH ...


    By Metrohm AG

  • Hyphenated techniques as modern detection systems in ion chromatography

    Ion chromatography (IC) with conductivity detection has been successfully used to analyze low-molecular organic compounds such as amines and organic acids, as well as anionic and cationic substances. However, due to current toxicity concerns and the consequently lowered maximum contaminant levels (MCL), analyses in complex matrices require improved sensitivity and selectivity. The coupling of IC ...


    By Metrohm AG

  • Ion Mobility Mass Spectrometry – Catch the Excitement!

    Interest in ion mobility mass spectrometry (IMS) technology is growing rapidly. The signs are everywhere. Since the year 2000, the number of abstracts submitted to ASMS mentioning ion mobility has grown more than 10-fold – from 30 to more than 350 in 2015. For most of that time, ion mobility has been available commercially in high-end research instruments or in homemade platforms. Waters ...


    By Waters Corporation

  • CO2 adsorption over ion-exchanged zeolite beta with alkali and alkaline earth metal ions

    The need to reduce anthropogenic CO2 emissions has been the driving force to consider new approaches and novel ideas for CO2 management, and carbon capture and storage (CCS) are considered to potentially be the most effective means to alleviate the problem. The most common method for CO2 capture is via gas absorption, with monoethanol amine (MEA) being the most widely used solvent. The current ...


    By Hiden Analytical

  • Preparation of xanthated bentonite and its removal behavior for Pb(II) ions

    Xanthate was successfully grafted onto bentonite by a relatively simple solution reaction. The obtained xanthated bentonite (XBent) was characterized by FT-IR spectrophotometer, thermogravimetric analysis (TG), particle size analysis, x-ray diffraction (XRD) and scanning electron microscopy (SEM). XBent acting as a type of environmentally friendly adsorbent was applied to remove lead ions from ...


    By IWA Publishing

  • Determining Nitrate and Nitrite Sequentially Using a Nitrite Ion Selective Electrode

    ABSTRACT Reliable analysis for NO3- and NO2- contained in wastewater, soils and reclaimed water is extremely important as these constituents can easily leach into ...


  • Removal of cadmium, chromium, copper, lead and zinc ions by alisma plantago aquatica

    Heavy metals are major toxic pollutants with severe health effects on humans. They are released into the environment from a variety of industrial activities. Alisma plantago aquatica (APA) was used as adsorbent to remove Cd(II), Pb (II), Zn(II) Cr(III) and Cu(II) from aqueous solution. The batch kinetic studies revealed that the adsorption was influenced by initial pH, concentration and ...


    By Inderscience Publishers

  • Effect of nickel ions on anaerobic methane production from water hyacinth

    The effect of different concentrations of nickel ions (Ni2+, 0, 10, 40 and 80 mg/L) on the anaerobic methane production of water hyacinth were investigated. Under these four concentrations, the methane production in 40 d was 2,275, 2,703, 3,210 and 2,481 mL, respectively. This situation illustrated that the Ni2+ promoted the growth of hydrogen-producing acetic acid bacteria and methanogenic ...


    By IWA Publishing

  • Room-temperature synthesis and characterisation of ion-induced iron-carbon nanocomposite fibres

    Graphite plates were Ar+ ion-irradiated with and without a simultaneous Fe supply at room temperature. The surfaces ion-irradiated without an Fe supply were covered with densely distributed conical projections with a carbon nanofibre (CNF) on the top. The CNFs thus grown were 20-50 nm in diameter and 0.3-2 µm in length. By contrast, the graphite surfaces ion-bombarded with a simultaneous Fe ...


    By Inderscience Publishers

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