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  • Epoxy Value On-Line Monitoring with a ChemView(R) Photometer
    , this intense peak requires a narrow optical narrow path (2 mm). Also, the basic liquid resin starting material is a spectral interferent, requiring more sophisticated (multivariate) calibration methods. The Optical Solutions' PS-2 diode array spectrometer was used to measure the NIR spectra of 13 samples
  • Water in Ethylene Glycol Online Monitoring with a Clear View Photometer
    Purpose: To determine water content in ethylene glycol (EG) without sample temperature control. Experimental: Our PS-2E NIR diode array spectrometer was used to measure the NIR spectra of 0 to 6% water in EG in the 25 to 35 °C temperature range using a 2 mm cuvette in our HeaterCellTM fiber optic
  • Ethylene: Diethylene Glycols On-Line Monitoring with a ClearViewTM Photometer
    closely related compounds. As a result, it is often thought that a process GC is required. Experimental: Our PS¬-2E diode array spectrometer was used to measure the NIR spectra of ethylene:diethylene glycol (EG:DEG) mixtures. Two meters of low-OH fiber optic cables were used and the samples were
  • Near Infrared ( NIR ) Applications with Miniature Fiber Optic Spectrometers
    for UV-VIS applications because of their high. 1 Spectrometer technology. sensitivity in the 190-900 nm wavelength range, and. their low dark current, which improves the. Fig. 1 shows a UV-VIS spectrometer with improved. spectrometers dynamic range. These linear array. optical performance due
  • Water in Acetic Acid On-Line Monitoring with a ClearViewTM Photometer
    Purpose: To determine water content in acetic acid with sample temperature correction. Approach: The PS¬-2 NIR diode array spectrometer was used to measure the near-infrared spectra of 0-15% water in acetic acid at various temperatures in a 5 mm cuvette in the HeaterCellTM fiber optic accessory
  • Water in Acetic Acid & p-Xylene with a ChemView(R) Filter Photometer
    : Spectra were taken with an Optical Solutions' PS-2 InGaAs diode array spectrometer with GRAMS32TM software and 2 meters of low-OH optical fibers. Thirteen samples were analyzed in Optical Solutions' HeaterCellÔ fiber-optic accessory at 50 °C in a 5 mm quartz cuvette Results: A PLS model was created
  • Using MEMS to Control Blending at AstraZeneca
    previously been used for on-line blend monitoring using instruments based on diode array and acousto-optical tunable filter technologies. (6) This paper discusses the application of a MEMS-based NIR spectrometer for on-line monitoring of powder blending in a rotating bin blender. MEMS is an acronym
  • Soluble Narrow Band Gap and Blue Propylenedioxythiophene-Cyanovinylene Polymers
    spectrometer, elemental analysis, and melting point. Polymer 1H NMR spectra. were recorded on a 500 MHz Inova 500. Polymer GPC was performed on two 300 x 7.5 mm Polymer Laboratories PLGel 5. µM mixed-C columns with Waters Associates liquid chromatography 2996 photodiode. array absorption. Polymer

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