Non-dispersive Infrared (NDIR) Gas Detection Articles

  • Synthesis and characterisation of superparamagnetic Fe
    3
    O
    4
    –SiO
    2
    nanoparticles and mod

    The superparamagnetic nanoparticles (Fe3O4) were prepared by co–precipitation method, then the biocompatible silicon dioxide (SiO2) was coated on the surface of these Fe3O4 nanoparticles (designated as Fe ...


    By Inderscience Publishers

  • Intelligent electric valve actuation on China’s West-East Pipeline - Case Study

    Overview The West-East Pipeline (WEPP) network is described as the largest and most significant gas industry project ever planned in China. Intended for the development of the western regions in China, the project involves construction of four gas pipelines connecting the eastern markets of China with the western resources. Thousands of kilometres of pipelines travel along varied terrains ...


    By Rotork

  • The Drumbeat on infrared thermal imaging

    Drumbeat Energy regards infrared (thermal) imaging as an amazingly useful tool in the quest for greater energy efficiency. It has the ability to define non-invasively and with uncanny speed and accuracy where heat is leaking from a building. Never was the expression “A picture paints a thousand words” ...


    By Drumbeat Energy Limited

  • EPA Method 415.3 - Determination of TOC in Source Water and Drinking Water

    Method 415.3 states that the measurement of Total Organic Carbon (TOC) and DOC must use a TOC instrument that oxidizes organic carbon in the water to create carbon dioxide gas, which is then measurable. The instruments are required to use one of two basic oxidation methods – either through combustion with an oxidizing gas, or through chemical oxidation with persulfate promoted by either UV ...

  • A novel spectrometer design for process and handheld infrared spectral measurements

    Introduction Infrared spectroscopy offers many unique advantages for measurements within an industrial environment. Historically, the technique has been used for a broad range of applications from the composition of gas and liquid mixtures to the analysis of trace components for gas purity analysis. In cases where a well-defined method of analysis is involved, such as the measurement of ...


    By CIC Photonics, Inc.

  • Fourier transform infrared spectroscopic investigation of humic substance samples of different origin and typology supported by chemometric tools

    In this paper 198 FTIR spectra of humic substance (HS) extracted from lake, marine sediments, soils and by Antarctic seawater were examined by Principal Component Analysis (PCA), Independent Component Analysis (ICA) and Two-dimensional Mapping (2DMAP) to identify the compositional and structural characteristics which characterise the typologies of samples examined and which are hardly detectable ...


    By Inderscience Publishers

  • Size-controlled preparation of ruthenium nanoparticles using polyaromatic amine-containing compounds as hydrogenation nanocatalyst precursors

    Ruthenium nanoparticles stabilised by polyaromatic amine-containing compounds (aminoethylcarbazole, aminoanthracene and aminoanthraquinone) were synthesised in solution using three different preparative methods, namely modified polyol reduction, borohydride reduction and phase-transfer method, respectively. Their product yields, particle sizes and size distributions were compared accordingly. The ...


    By Inderscience Publishers

  • Mid-infrared analysis of biodiesel

    The biodiesel industry is growing rapidly. and so is the need for analysis 10 ensure quality product and keep biodiesel in good standing. Biodiesellhat has residual glycerin, glycer· ides, or inorganic salts from the production process can cause problems such as Iilter plugging and injector coking in a diesel engine. The biodiesel blend ralio also can affect cold weather performance, lax ...


    By Spectro Scientific

  • Upgrading from Pellistor Gas Sensors to Infrared Technology

    In this article Andy Avenell, Crowcon’s Fixed Systems Product Manager, considers the shift towards infrared (IR) gas sensor technology in the oil and gas industry. Abstract Flammable gases and vapours can present considerable dangers in many industrial applications, none more so than the processes involved in extracting, transporting and processing oil and gas. Fast and reliable ...

  • Pioneer 3D simulation of volcanic eruption

    On 30 September 2007, between 11:30 and 12:00 UTC (14:30 and 15:00 local time), Jebel al-Tair, a small volcanic island in the Red Sea erupted for the first time since 1883. The western part of the island suffered a collapse following the eruption and lava flows and fire fountains were observed. 3 military personnel lost their lives. Satellite imagery showed just a small plume of ash, indicating ...

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