spectrometer Articles

  • Webinar Highlights: Microfluidics for macromolecules

    Hi, I’m Jim Murphy, Principal Consulting Chemist at Waters, and I recently collaborated with Lucinda (Cohen) Hittle to present an exciting webinar on the use of microflow chromatography for macromolecules.  Lucinda, a Director of Discovery Bioanalytics at Merck, presented an overview of the use of LC-MS for peptide analysis along with various case studies for in vitro and in vivo ...


    By Waters Corporation

  • Mass spectrometers for catalysis & thermal analysis

    Hiden Analytical have been designing and developing the highest quality quadrupole mass spectrometer based gas analysis systems for over 25 years. We have built a reputation for delivering instruments with superior sensitivity, accuracy and reproducibility together with a first class global service and applications support network. From dedicated triple filter UHV TPD quadrupoles to fully ...


    By Hiden Analytical

  • Identification of forensic fabrics using a portable Raman spectrometer

    At a crime scene, a police officer collects a fiber sample that may prove to be invaluable evidence in identifying a criminal or exonerating an innocent person. While FTIR has been used for analysis in the past, the strong absorption of the fabric or the glass slide where it is mounted makes the spectrum very hard to interpret. In recent years, Raman spectroscopy has been studied extensively for ...


    By B&W Tek

  • 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.

  • 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

  • Resolution in life and mass spectrometers? It really depends…

    “How few there are who have courage enough to own their faults, or resolution enough to mend them.” Benjamin Franklin As I sat one morning before work staring into my green tea leaves at the bottom of my cup and reflecting on my resolutions achieved and resolutions that evaded me in 2015, I resolved to make 2016 a better year. The ‘missed’ resolutions ...


    By Waters Corporation

  • Plume structure and dynamics from thermocouple and spectrometer measurements

    Abstract The movements, structure, and dynamics of a heated stack plume are revealed by thermocouple and spectrometer measurements. A three-dimensional thermocouple array provides temperature data at two-second intervals. An animated display allows the temperature and position variations of a plume to be visualized, and demonstrates that the plume parameters have significant temporal ...


    By D&P Instruments

  • A comparison of four commercially available portable Raman spectrometers

    Abstract The objective of this presentation is to discuss the results of the evaluation studies conducted on four commercially available field-portable Raman spectrometers. The data presented in this comparison will affect the forensic science community by assisting a prospective user in determining which portable Raman device may best suit their agency’s needs. This presentation ...


    By AcuTech Scientific Inc.

  • 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.

  • Rugged high speed rotary imaging Fourier Transform Spectrometer for industrial use

    Abstract Keywords: FTIR, Spectrometer, Imaging, Fourier Transform, interferometer A new rugged rotary Fourier Transform Spectrometer (FTS) has been developed. It can be used for environmental remote sensing and monitoring of chemical processes. Both single pixel and mosaic imaging configurations have been built and tested. The continuous rotary scan of the ...


    By D&P Instruments

  • 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.

  • Fast and reliable analysis of wastewater and sludges with a scanning array ICP emission spectrometer

    Wastewater and sludge analyses generally require the determination of many elements and are economically performed using ICP-OES, due to the speed and robustness of this technique. Several ICP-OES methods are available for this determination including EPA method 200.7 (1). In the USA, DIN 38 406 E22 (2) in Germany, or ISO 11885 (3) on a global scale. For this type of application, the ...


    By PerkinElmer, Inc.

  • Pumping Ions – An Exercise in Engineering Sensitivity Into the Xevo TQ-XS Mass Spectrometer

    The challenge: Create the most sensitive mass spectrometer for quantitative analysis. That’s a tall order for any design engineering team. When given that assignment for a next-generation, tandem quadrupole mass spectrometer, our design engineers first spoke to those for whom analytical sensitivity means the most: scientists doing quantitative studies for ...


    By Waters Corporation

  • 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

  • Field testing of small, fast, rugged Fourier Transform Spectrometer in the air and on the ground

    Designs & Protoypes, LTD. has fielded a small, very fast, and rugged rotary Fourier Transform Spectrometer (FTS) which can be used for environmental remote sensing and chemical detection. The continuous rotary scan of the Turbo FT allows operation without the laser reference of conventional FT spectrometers, and it has been demonstrated to deliver 360 spectral scans per second and 1 cm-1 ...


    By D&P Instruments

  • High-Sensitivity Small-Size X-Ray Fluorescence Spectrometers

    Using a small X-ray tube, X-ray fluorescence analysis can achieve a high seneitivity through such means as appropriate geometrical arrangement, pretreatment and total reflection. This article outlines relevant X-ray element technologies, with a focus on high-sensitivity small-size X-ray fluorescence analysis that is being developed by a researchers' team including the author. This method permits ...


    By HORIBA Europe GmbH

  • Evolved gas analysis - the study of materials using a Thermogravimetric Analyser (TGA) coupled to a Mass Spectrometer (MS)

    Thermogravimetric Analysis (TGA) of materials is commonly used to provide information on the weight loss as a sample is heated or held isothermally. Pharmaceutical materials often show weight losses associated with the loss of solvent/ water, desolvation or decomposition of the sample. This information is then used to assess the purity and stability of the material and its suitability for use. ...


    By Hiden Analytical

  • Airborne testing of small, fast, rugged Fourier Transform Spectrometer for geologic survey use

    Designs & Protoypes, LTD. has fielded a small, very fast, and rugged rotary Fourier Transform Spectrometer (FTS) which can be used for environ-mental remote sensing and chemical detection. The continuous rotary scan of the Turbo FT allows operation without the laser reference of conventional FT spectrometers, and it has been demonstrated to deliver 360 spectral scans per second and 1 cm-1 ...


    By D&P Instruments

  • Construction of a low–cost laser–based multiplexed spectrometer: a potential probe for environmental pollution monitoring

    A low–cost, sensitive, laser–based (Helium Neon; He–Ne) optical Fourier–transformed (multiplexed) spectrometer has been constructed for the quantification of suspended particulates in the air. The optomechanical features of the spectrometer are presented together with a theoretical framework of its operation. The apparatus is calibrated by using a standard commercial spectrophotometer and has ...


    By Inderscience Publishers

  • 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

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