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organic carbon analysis Applications

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    Gas analysis & monitoring system for biogas analysis

    “Biogas” means a mixture of various types of gas (mostly methane) produced by bacterial fermentation in anaerobic conditions(absence of oxygen) of organic residues from waste, decaying plant, carcasses in putrescence. The analyzers of biogas by Infrared cells carry out the continuous analysis of CH4, O2, CO2, H2S and NH3. The whole process sees the decomposition of organic material by some types of bacteria, producing carbon dioxide, molecular hydrogen and methane(methane conversion of organic compounds).

    By ETG Risorse e Tecnologia based in Montiglio, ITALY.

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    Rapid Determination of Pesticides in Spinach

    Highly pigmented foods, such as spinach, require cleanup prior to analysis for pesticide residues. A dual-layer SPE tube containing graphitized carbon and aminopropyl on silica (NH2) is often used because; Carbon removes pigments and sterols and NH2 removes fatty acids, polar pigments, organic acids, and sugars. Removing these matrix materials reduces interferences that can lead to ion suppression in LC-MS, inlet contamination in GC-MS, and column contamination for both techniques. Our Supel Sphere Carbon/NH2 SPE tube uses spherical materials for both the carbon and NH2 layers, providing fast, more consistent flows compared to tubes containing granular material. This allows gravity elution (instead of vacuum elution) to be applied to Supel Sphere tubes, resulting in more contact time between extracts and sorbents.

    By Sigma-Aldrich Co., LLC based in Bellefonte, PENNSYLVANIA (USA).

  • Water monitoring for laboratories

    Chemical purity of water is assessed for a wide variety of different chemicals depending on the type of water and applicable local legislation. 

    Chemical analysis of water can include testing for nitrogen compounds, dissolved heavy metals, and total and dissolved organic carbon.

    Common water monitoring applications include:

    • Determination of suspended solids in waterusing for example glass fiber filters.
    • Chemical analyses of for example heavy metals, dissolved organic carbons (DOC), and ions.
    • Microbiological analyses using membrane based microfiltration methods

    By GE Healthcare UK Limited based in Little Chalfont, UNITED KINGDOM.

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