infrared spectrometer Articles

  • Determination of oil and grease in water with a mid-infrared spectrometer

    The concentration of dispersed oil and grease (OG) is an important parameter for water quality and safety. OG in water can cause surface films and shoreline deposits leading to environmental degradation, and can induce human health risks when discharged in surface or ground waters. Additionally, OG may interfere with aerobic and anaerobic biological processes and lead to decreased wastewater ...


    By PerkinElmer, Inc.

  • 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.

  • 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

  • Methodologies and protocols for the collection of midwave and longwave infrared emissivity spectra using a portable field spectrometer

    Abstract The development of highly portable field devices for measuring midwave and longwave infrared emissivity spectra has greatly enhanced the ability of scientists to develop and verify exploitation algorithms designed to operate in these spectral regions. These data, however, need to be collected properly in order to prove useful once the scientists return from the field. Attention to ...


    By D&P Instruments

  • Infrared analysis of single and multilayer films in the production area

    There are many areas in production that can benefit from a rapid onsite measurement: determining which side is which on multilayer films to be laminated, checking rolls of film in the warehouse, measuring an individual layer within a film in the production area, raw material verification, and formulation discrimination are few examples. A new concept portable infrared spectrometer enables the ...


    By Spectro Scientific

  • Biodiesel Analysis with Mid Infrared - From Feedstock to Fuel

    Introduction The biofuels industry is growing rapidly and so is the need for analysis to ensure quality product. The parameters for quality biodiesel require different types of instruments and measurement systems, such as gas chromatographs (GC), titrators, centrifuges, infrared spectrometers... Although claims are out there for the analyzer that will do it all, unfortunately there is no one ...


    By Spectro Scientific

  • InfraSpec VFA-IR Spectrometer for Biodiesel Blend Measurements

    Synopsis: Simple, yet powerful, filter-based IR spectrometers are ideal for compliance to the new ASTM 7861 test method for accurately measuring biodiesel blend ratios. The Wilks InfraSpec analyzer was the instrument used to develop and validate this method and thus is the industry standard for field measurement of FAME (Fatty Acid Methyl Ester) blend percentages. ...


    By Spectro Scientific

  • Demonstration of an Ethane Spectrometer for Methane Source Identification

    ABSTRACT: Methane is an important greenhouse gas and tropospheric ozone precursor. Simultaneous observation of ethane with methane can help identify specific methane source types. Aerodyne Ethane-Mini spectrometers, employing recently available mid-infrared distributed feedback tunable diode lasers (DFB-TDL), provide 1 s ethane measurements with sub-ppb precision. In this work, an Ethane-Mini ...


    By Aerodyne Research, Inc.

  • Quantitative analysis of automotive exhaust gas by Fourier Transform Infrared spectroscopy

    For monitoring gaseous emissions from muffler, instruments presently used can only measure quantitatively a given pollutant. Fourier Transform Infrared (FTIR) spectroscopy can provide quantitative and online real time analysis. Calibration of our FTIR spectrometer with CO, CO2, NO, NO2 and N2O was done and the limits of quantification obtained were shown to be as low as 80 ppm. The variation ...


    By Inderscience Publishers

  • Hyperspectral thermal infrared line profiling for mapping surface mineralogy

    Abstract An airborne hyperspectral thermal infrared line profiling spectrometer (TIPS) has been developed by CSIRO and Fugro Airborne Surveys to measure and map surface mineralogies. TIPS is a spectrometer based on an FTIR instrument, recording radiance channel in about 100 channels in the 8 mm to 13 mm wavelength range from contiguous 10 meter pixels along the flightline, at a nominal ...


    By D&P Instruments

  • Prediction of intact nectarine quality using a Vis/NIR portable spectrometer

    A commercial visible-near infrared spectrometer was tested for intact nectarine quality prediction using partial least squares calibrations. Soluble solids content, firmness, fruit weight and colour index were analysed in each fruit. External validation carried out indicated good predictive performance, particularly for soluble solids content and fruit firmness. These parameters are of key ...


    By Inderscience Publishers

  • Comparison of EN 14078 and ASTM D7371 infrared biodiesel methods

    Infrared (IR) analysis is the most widely used measurement technology for measuring biodiesel in diesel. Both EN 14078 and ASTM D7371 methods use infrared as the analytical method and more specifically FTIR (Fourier Transform Infrared) spectroscopy. Infrared is a common spectroscopic technique used for quantitative and qualitative analysis. In the biodiesel measurement, the fatty acid methyl ...


    By Spectro Scientific

  • The importance of background in the Detection and Identification of Gas Plumes using Emissive Infrared Hyperspectral Sensing

    Abstract Using a Fourier transform infrared field spectrometer, spectral infrared radiance measurements were made of several generated gas plumes against both a uniform sky and terrestrial background. Background temperature, spectral complexity, and physical homogeneity each influenced the success of emissive infrared spectral sensing technology in detecting and identifying the presence of a ...


    By D&P Instruments

  • Comparison of field and laboratory collected midwave and longwave infrared emissivity spectra / data reduction techniques

    Abstract Many targets that remote sensing scientists encounter when conducting their research experiments do not lend themselves to laboratory measurement of their surface optical properties. Removal of these targets from the field can change their biotic condition, disturb the surface composition, and change the moisture content of the sample. These parameters, as well as numerous others, ...


    By D&P Instruments

  • Comparing TGA, FTIR and fixed filter infrared analyzers for measuring soot levels in in-service lubricants

    Measuring soot in diesel engine oil has become more important as soot levels get higher due to exhaust gas recirculation. As soot isone of the key indicators for the condition of the oil, diesel engine maintenance programs performing regular soot checks can realize cost savings by extending drain periods and reducing used oil disposal. TGA (Thermal Gravimetric Analysis) is the traditional method ...


    By Spectro Scientific

  • The African crested rat’s poisonous hairs studied by attenuated total reflection infrared spectroscopy case study

    Introduction Plant toxins are commonly used by many invertebrates, as an effective defence against predation. However, such behaviour has recently been observed in a mammal.1 The African crested rat, Lophiomys imhausi, applies a potent toxin to the fur alongside its flanks. It acquires this toxin from Acokanthera schimperi,1 a shrub abundant in East Africa and dubbed the “poison arrow ...


    By Specac Limited

  • FTIR Spectroscopy

    Fourier Transform Infrared (FTIR) Spectroscopy bases its functionality on the principle that almost all molecules absorb infrared light. Only the monatomic (He, Ne, Ar, etc) and homopolar diatomic (H2, N2, O2, etc) molecules do not absorb infrared light. Molecules only absorb infrared light at those frequencies where the infrared light affects the dipolar moment of the molecule. In a molecule, ...


    By CIC Photonics, Inc.

  • New ASTM Test Method Offers Quick and Easy Oil and Grease Measurement for Water and Soil Samples

    Onsite Field Measurement of Oil and Grease A quick and easy field analysis method for determining oil and grease concentration levels is important for both offshore oil platforms and soil remediation sites.. Prior to the Montreal Protocol, infrared (IR) analysis using Freon as an extraction solvent was a widely used field and laboratory method. In 1999, the U.S. EPA promulgated Method 1664A ...


    By Spectro Scientific

  • Exoscan FTIR instrument system can easily be used in the lab or taken to the field for routine analysis.

    Infrared spectroscopy has long been recognized as a selective and sensitive technique for analysis and characterization of surfaces. From material identification to quantitative analysis, infrared analyses can establish if a surface is composed of the correct material, has the proper coating thickness, is free of contaminants, is properly cured, or has the correct properties for the next step in ...


  • Degradation of malachite green by dielectric barrier discharge plasma

    Oxidative decomposition of aqueous organic pollutant malachite green (MG) was studied in a dielectric barrier discharge reactor operated under ambient conditions. Total organic carbon content analysis confirmed the mineralization of the pollutant leading to the formation of carbon dioxide, which was confirmed by an infrared analyzer. Typical results indicated that the degradation rate increases ...


    By IWA Publishing

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