ion analysis method Articles

  • TOC Analysis for Standard Methods 5310B: High-Temperature Combustion Method

    Introduction Total Organic Carbon (TOC) is a rapid method that analyzes for organic carbon and expresses the result as the amount of carbon found. It is a non-specific method unable to distinguish between various organic species and only indicates that organic carbon compounds are present. Organic carbon analyzers operate by the determination of the amount of total carbon present in a ...

  • 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.

  • 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

  • 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 ...


  • Thermodynamic analysis of Spark Ignition engines using the Entropy Generation Minimisation method

    The recent improvement on Spark Ignition Engines has been the result of improved engine thermodynamic cycles, made possible by advances in technologies such as Variable Valve Timing (VVT) and Variable Compression Ratio (VCR). To evaluate the potential of these techniques a thermodynamic analysis is made. Numerical models were implemented in Matlab Simulink using the laws of thermodynamics and ...


    By Inderscience Publishers

  • A comparison of two solid phase extraction methods for the analysis of Polyaromatic Hydrocarbons in butter

    Background Polyaromatic hydrocarbons (PAHs) are ubiquitous in the environment, resulting from both natural and manmade sources of combustion. Farm animals, such as cows, can become exposed to them through both consumption of contaminated feed and water, and inhalation of contaminated atmosphere ...


    By MilliporeSigma

  • 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.

  • 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

  • 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 ...


  • 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

  • What’s the big deal about ion mobility mass spectrometry?

    Ion mobility spectrometry (IMS) is a technique that differentiates ions based on their size, shape, charge, and mass. While often used in small, portable devices at airports and remote locations for rapidly detecting small molecules whose mobility is known (for example, certain narcotics and explosives) when coupled with liquid chromatography-mass spectrometry (LC/MS), IMS provides an orthogonal ...


    By Waters Corporation

  • Optimising next-generation lithium ion batteries with infrared spectroscopy

    Lithium batteries have become the mainstay of modern portable electronics, providing a reliable power source to run mobile phones, laptop computers and electric vehicles. Lithium technology is now even being developed on a large scale to provide electricity storage to supplement the National Grid during peak demand [1]. The issue with lithium batteries remains the same – energy density ...


    By Specac Limited

  • Modeling Analysis of Fuel Sprays

    Current engine development processes in which computations play an important role have sought for numerical models which can accurately represent phenomena in spray combustion. The authors have developed original sub-models taking into account the effects of extensive spray combustion phenomena including nozzle cavitation, droplet breakup behavior, multi-component evaporation process, spray-wall ...


    By HORIBA Europe GmbH

  • Bionanotechnology for single-cell analysis

    The cell is the smallest structural unit of biological life. These microscopic systems perform functions as diverse as energy metabolism, intra- and intercellular signalling by chemical and electrical means, and self-reproduction. Thousands of different biochemical and electrical processes are simultaneously performed with the aid of nanometre-sized proteins and information stored in DNA. ...


    By Inderscience Publishers

  • A Guide to BFB Tuning for VOC Analysis

    All US EPA methods for volatile organic compounds (VOCs) require that specific GCMS tuning criteria be met before running a calibration curve or analyzing actual samples. The GCMS is tuned using the traditional tuning compound, PFTBA (perfluorotributylamine), and the tune is evaluated every 12 hours by injecting BFB (4-bromofluorobenzene) and measuring the relative intensity of key mass ...

  • Vacuum assisted ion injection using deuterium gas for nano-power cell production

    The vacuum-assisted Low Energy Nuclear Reaction (LENR) is investigated for power cell analysis. This nuclear reaction at room temperature conditions can give an empirical scenario. The experiment of Iwamura et al. (2002) is investigated for the theoretical analysis using a computational simulation. The vacuum can perform enough suction in order to react with the layers and the injection ions. ...


    By Inderscience Publishers

  • Streamflow and hydrogen ion interrelationships identified using data-based mechanistic modelling of high frequency observations through contiguous storms

    With the aim of quantifying the purely hydrological control on fast water quality dynamics, a modelling approach was used to identify the structure (and dynamic response characteristics or DRCs) of the relationship between rainfall and hydrogen ion (H+) load, with reference to rainfall to streamflow response. Unlike most hydrochemistry studies, the method used makes no a ...


    By IWA Publishing

  • New total hardness (Calcium and Magnesium) automated titration method case study

    MANTECH INC. is a leading manufacturer of automated multi-parameter, titration, Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) laboratory and process instruments. MANTECH developed the first automated software based titration system in the world. By listening to our environmental customers, MANTECH understood the need to develop a new total hardness (calcium and magnesium) ...


    By MANTECH

  • Behavior of hexavalent chromium in the water supply system by IC-ICP-MS method

    The analysis conditions for measuring trace concentration of Cr(VI) based on the ion chromatography-inductively coupled plasma-mass spectrometry (IC-ICP-MS) method was examined. By optimizing the analysis conditions, the measurement of 0.02 μg-Cr(VI)/L was achieved with a high degree of accuracy. The behavior of Cr(VI) through the water treatment process in Osaka city was investigated and ...


    By IWA Publishing

  • 5 Insights: Protein Quantification Using the Surrogate Peptide Method

    Protein quantification for bioanalysis is difficult but you have options. The following insights will bring you up to speed on current challenges, issues, and options. 1. Biopharma is Growing Fast Biopharmaceutical drug development is experiencing rapid growth. More than 600 biologics have U.S. FDA approval and over 50 monoclonal antibodies (mAbs) are approved in the US and EU ...


    By Waters Corporation

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