siloxanes analysis Articles

  • A Summary of Available Analytical Methods for the Determination of Siloxanes in Biogas

    ABSTRACT The importance of measuring siloxanes has increased with the recent growth of the landfill-gas-to-energy (LFGTE) market. Siloxanes and other biogas impurities can form a residue upon combustion in engines that may increase maintenance and reduce engine lifetime.  A siloxanes analysis can assist with either determining if a bioaas purification system is needed, or if a system is ...


    By Eurofins Air Toxics Inc

  • Comparison of Impinger and Canister Methods for the Determination of Siloxanes in Air

    Abstract Tliis paper compares canister and impinger methods for the analysis of siloxanes in air by gas chromatography/inass spectrometry (GC/MS). Siloxanes are frequently found in commercial and consume? products such as detergents and cosmetics. Most low molecular weight siloxane compounds volatize quickly into the atmosphere; however, some end up in wastewater or landfills when consumer ...


    By Eurofins Air Toxics Inc

  • Tissue‐based risk assessment of cyclic volatile methyl siloxanes

    Cyclic volatile methyl siloxanes (cVMS) are important consumer materials that are used in personal care products and industrial applications. These compounds have gained increased attention in recent years following the implementation of chemical legislation programs worldwide. Industry‐wide research programs are being conducted to characterize the persistence, bioaccumulation, and toxicity (PBT) ...


    By John Wiley & Sons, Ltd.

  • 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 MilliporeSigma

  • 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 MilliporeSigma

  • Manufacturing a nanometre scale surface topography with varying surface chemistry to assess the combined effect on cell behaviour

    Surface topography and surface chemistry can influence cell adhesion. This study evaluated how the combined effect of topography and chemistry can reduce cell spreading and proliferation. Silica nanoparticulate coatings ranging from 7, 14 and 21 nm in diameter were manufactured on glass substrates and chemically modified using organofunctional siloxanes bearing methyl (−CH3), sulphydryl (−SH), ...


    By Inderscience Publishers

  • Taking Fossil Fuels to the Next Level - Standards Underpin Extraction, Processing and Distribution

    To the average person, the oil and gas industry may appear simple — a matter of literally tapping into a natural resource and distributing it to customers. Of course the matter of extraction is rarely simple, and in the case of emergent hydraulic fracturing technology, it is particularly complex and capital-intensive. In fact, the world of petroleum and natural gas extraction, distribution ...


    By ASTM International

  • New technology enables biogas plant optimization

    Governments around the world are seeking to lower greenhouse gas (GHG) emissions in the fight against climate change, to reduce waste to landfill, and to increase their utilisation of renewable energy in compliance with international agreements. Consequently, in many countries, subsidies have been made available to encourage the growth of the biogas sector. ...


    By Vaisala

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you