siloxanes analyser Articles

  • Siloxanes in the Nordic environment

    Chemical analyses carried out jointly by the Norwegian Institute for Air Research (NILU) and the Swedish Environmental Research Institute (IVL) on behalf of the Nordic Council of Ministers show siloxanes are present as common pollutants in the Nordic environment. They seem to be emitted through diffuse pathways and they enter the aquatic food ...

  • Behaviour and adsorptive removal of siloxanes in sewage sludge biogas

    We investigated the behaviour of siloxanes, which adversely affect biogas engines, as well as their concentration levels in sewage sludge biogas in Japan. We also performed experiments on the absorptive removal of siloxanes using various adsorbents and determined the main adsorbent characteristics required for the removal of siloxanes. The results of our study on the concentration and composition ...


    By IWA Publishing

  • SPME/GC Analyses of Sulfur Gases and VOCs, Using a Carboxen/PDMS Fiber

    Sample extraction of sulfur compounds and VOCs by traditional methods can be difficult and expensive. Typically, sulfur analysis requires concentration of the gas using adsorbent tubes containing carbon adsorbents. Analysis by such means, however, requires the use of an expensive thermal desorption unit to heat the tubes before transferring the gases to a gas chromatograph. Analysis of VOCs ...


    By Sigma-Aldrich Co., LLC

  • Petroleum/Chemicals Application Guide

    This guide contains information about Supelco products and technology for performing detailed hydrocarbon analysis by chromatographic methods. Various applications are discussed; including, simulated distillation, polynuclear aromatic hydrocarbons, phenols / polymers, petrochemical analysis, high resolution and high speed analyses, and packed column applications. Columns used range from the ...


    By Sigma-Aldrich Co., LLC

  • Contact Lens Permeation Testing from Systech Illinois

    A contact lens design using a particular material will require the measurement of Oxygen Permeation.  Materials with higher permeation rates together with thinner lenses will perform better, providing greater comfort during use.  However, simply choosing the material with the highest permeation rate and making the lens thin is not an easy option.  The lens shape and thickness ...


    By Systech Instruments Ltd

  • Easy payback from biogas monitoring

    There is a strong business case for biogas monitoring and CHP protection. A fixed biogas analyser may cost some £6-10,000 and monitor gas every few minutes day and night. By comparison it can save its own cost many times over by protecting CHP engines from expensive unplanned downtime, biogas engine ...


    By Geotech

  • Generation using gas-fuelled engines in South Africa – an overview

    Most gas engines are Otto cycle spark ignition internal combustion reciprocating engines using natural gas as the primary fuel. Smaller models utilise stochiometric combustion while the larger engines are lean burn engines with pre-chamber ignition systems. The engines are coupled with packaged generator sets, ...


    By Clarke Energy

  • 2011 Predictions for EPA`s Office of Chemical Safety and Pollution Prevention

    The Acta Group, L.L.C.'s (Acta) thoughts are below on what may be headed our way in 2011 from the U.S. Environmental Protection Agency's (EPA) Office of Chemical Safety and Pollution Prevention (OCSPP). In short, the general trends established by the Obama Administration during the past two years are expected to continue notwithstanding the 2010 election results. At the same time, the impact of ...


    By Acta Group

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