Metal Analysis Articles

  • What is the Chemistry That Makes Detergents Work?

    We all have dirty surfaces that need to be cleaned. We see the soil, reach for the detergent, clean the surface and then move on with whatever we were doing, pretty much taking the whole process for granted. Have you ever stopped to think about what happens when you clean a dirty surface? What kind of chemical reactions take place to remove the soil? Why some detergents work better than others? ...

  • Assessment of toxic metals in water and sediment of Pasur River in Bangladesh

    This study was conducted to assess the levels of toxic metals like arsenic (As), chromium (Cr), cadmium (Cd), and lead (Pb) in water and sediments of the Pasur River in Bangladesh. The ranges of Cr, As, Cd, Pb in water were 25.76–77.39, 2.76–16.73, 0.42–2.98 and 12.69–42.67 μg/L and in sediments were 20.67–83.70, 3.15–19.97, 0.39–3.17 and 7.34–55.32 mg/kg. The level of studied metals in water ...


    By IWA Publishing

  • Case study - Sheet metal fabrication & surface wipe analysis

    A manufacturing company uses cutting oils to produce sheet metal to assemble elevators. The metal must be cleaned after production. Wipe samples were collected by the client and sent to Sitelab to monitor and adjust a new cleaning system ...


    By Sitelab Corporation

  • Accounting for metal bioavailability in assessing water quality: A step change?

    Bioavailability of metals to aquatic organisms can be considered to be a combination of the physicochemical factors governing metal behavior and the specific pathophysiological characteristics of the organism's biological receptor. Effectively this means that a measure of bioavailability will reflect the exposures that organisms in the water column actually “experience”. This is important ...


    By John Wiley & Sons, Ltd.

  • Hydrogel-swelling driven delivery device for corrosion resistance of metal in water

    Corrosion on steel and copper pipes in industry can trigger pollution and weakness due to undesired chemical and biochemical reactions. Too much or too little inhibitor can decrease its efficiency, even causing waste and pollution. In this contribution, an innovative delivery device driven by hydrogel swelling, mainly consisting of a semi-permeable membrane, a hydrogel-swelling force drive and ...


    By IWA Publishing

  • Tissue concentrations as the dose metric to assess potential toxic effects of metals in field‐collected fish: Copper and cadmium

    The present study examined the available literature linking whole‐body tissue concentrations with toxic effects in fish species for copper and cadmium. The variability in effect concentration for both copper and cadmium among species occurred within an order of magnitude for all responses, whereas the range for lethal toxicity based on water exposure spanned approximately 4 to 5 orders of ...


    By John Wiley & Sons, Ltd.

  • Monitoring Metal Contamination in Water

    Metal contamination in drinking and source water has proven to have economic and health impacts on the human race. Regulatory agencies understand the importance of remediating metal contamination in our water supply to ensure safe consumption of drinking water. In order to properly remediate our water supplies, one must first determine cause of contamination and the source of the problem. ...


    By IWA Publishing

  • Fe(II) and Fe(III) adsorption by chitosan-tripolyphosphate beads: kinetic and equilibrium studies

    The purpose of this research was to analyze the adsorption behavior of Fe(II) and Fe(III) ions in aqueous solution onto beads of naturally derived chitosan cross-linked with tripolyphosphate in a batch system. Effects of solution pH, contact time and amount of adsorbent were regarded in the kinetic and equilibrium studies. The optimum conditions of adsorption for Fe(II) and Fe(III) were obtained ...


    By IWA Publishing

  • Hired metals analyser ensures remediation success

    Cognition Land and Water Ltd, a UK based remediation specialist, has hired a portable XRF metals analyser to improve the speed of remediation work at a project in London’s Kentish Town. The project had a major impact on local residents so timescales were extremely tight but Cognition’s Charlie Jarvis says “It would not have been possible to meet the deadline without the use of ...


    By Ashtead Technology Ltd

  • Let red light put your salon in the green

    Who amongst us wouldn't turn back the clock if we could - especially when it comes to our skin? It turns out: You now can... in a manner of speaking. Red light is a healing strategy that has been proven in scientific studies and product tests to stimulate production of collagen, which improves the appearance of skin, making you look years younger. Repeated tests show red light therapy is an ...


    By Light Sources, Inc.

  • Biosorption of lead (II) and cadmium (II) using Escherichia coli genetically engineered with mice metallothionein I

    Contamination caused by heavy metals in wastewater has a high potential of risk because they easily penetrate in to the trofic chain accumulating as organometallic compounds. In this work, the expression of mice metallothionein in E. coli (pMt-Thio) was examined as a strategy to enhance metal biosorption efficiency of bacterial biosorbents for Pb(II) and Cd(II) ions. The results ...


    By IWA Publishing

  • Analysis of metal concentration levels in water, sediment and fish tissues from Toledo municipal lake by applying SR-TXRF technique

    The main objective of this study was to evaluate the metal content in water and sediment from the Toledo municipal lake, as well as the concentration levels of heavy metals in muscle and liver of four fish species. A digestion procedure was performed in all fish samples. Metal analysis was performed by using the Synchrotron Radiation X-ray Fluorescence technique. The accuracy and validity of the ...


    By IWA Publishing

  • Structure and performance of industries in Madhya Pradesh in India

    Madhya Pradesh (MP) has emergence of industrial sector characterised by small- and medium-scale industries. Present study is based on annual survey of industries for 19 industries group called 'two digit industries' (TDI), which are major contributors to the economy. The key indicators such as net value added, productive capital number of registrations and the employment prospects in the ...


    By Inderscience Publishers

  • Lead Monitoring

    New lead standards are going to require new sampling methods. Fortunately, the latest samplers are making those requirements easier to cope with. Careful planning and research will produce valid, defensible results, while improvements in monitoring technology have increased the effectiveness and accuracy of modern high volume samplers. Today's samplers can save time and money, providing useful ...


    By American Ecotech LLC

  • Heavy Metals in Wastewater: The Effect of Electrolyte Composition on the Precipitation of Cadmium(II) Using Lime and Magnesia

    The effect of effluent composition on the efficiency of hydroxide precipitation of Cd(II), using both lime and magnesia as precipitants, has been modelled by the solubility domain approach in order to provide wastewater effluent treatment limits, and has been experimentally validated. Common anionic species such as Cl−,, SO42−, and CO32−, have been treated. Solubility domain ...


    By Springer

  • Performance specification YY: Specifications and test procedures for Xray fluorescence based multi-metals continuous emission monitoring systems at stationary sources case study

    Performance Specification YY details the performance requirements for a multi-metals continuous emissions monitor that utilizes x-ray fluorescence (XRF) as an analytical technique. Each XRF based multi-metals CEMS must meet the criteria for accuracy, stability, and instrumental response laid out in this document. In addition, every XRF multimetals CEMS must meet the installation requirements in ...

  • X-Ray Fluorescence-Based Multi-Metal Continuous Emission Monitor

    ABSTRACT: Army demilitarization incinerators will need to comply with the Hazardous Waste Combustor National Emission Standard for Hazardous Air Pollutants that will regulate metals and metal compounds listed under the Clean Air Act Amendments. A large problem for these incinerator operations is limited knowledge of the type and quantity of emitted metals, so that compliance may be determined ...

  • ICBS: Intellectual Capital Benchmarking Systems

    Researchers in the areas of sustainable competitive advantage have come to the conclusion that the only thing that gives an organisation a competitive edge - the only thing that is sustainable - is what it knows, how it uses what it knows, and how fast it can know something new. But if most agree on the key role of knowledge as a source of competitive advantage, very few know how to manage ...


    By Inderscience Publishers

  • KPDES Permit Compliance: Metals in Wastewater Effluent at Fort Knox

    ABSTRACT Prior to constructing a new FOTW, Fort Knox had a history of exceeding KPDES effluent limitations for ammonia and BOD. The new 6 MGD FOTW solved the problem, but metals exceedances became an issue. The exceedances could be linked to several factors: low water-quality based effluent limitations (WQBELs) on the new KPDES permit, high background concentrations of some metals, and high ...


    By Weston Solutions, Inc

  • Preparing Test Specimens Using Undercompaction

    A specimen preparation procedure is presented that offers an improved method of preparing reconstituted sand specimens for cyclic triaxial testing. The method leads to more consistent and repeatable test results. This procedure (1) minimizes particle segregation, (2) can be used for compacting most types of sands having a wide range in relative densities, and (3) permits determination of the ...


    By ASTM International

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