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Journal articles on the topic 'IR Reflectance Spectroscopy'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Leyden, D. E., and R. S. S. Murthy. "Diffuse reflectance Fourier transform IR spectroscopy." TrAC Trends in Analytical Chemistry 7, no. 5 (1988): 164–69. http://dx.doi.org/10.1016/0165-9936(88)85044-1.

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2

Beden, B. "Integrated electromodulated IR reflectance spectroscopy (EMIRS)." Journal of Electroanalytical Chemistry 345, no. 1-2 (1993): 1–12. http://dx.doi.org/10.1016/0022-0728(93)80465-t.

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3

Lopes, M. I., I. Fonseca, P. Olivi, et al. "Integrated electromodulated IR reflectance spectroscopy bands." Journal of Electroanalytical Chemistry 346, no. 1-2 (1993): 415–32. http://dx.doi.org/10.1016/0022-0728(93)85028-f.

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4

Jansen, J. A. J., J. H. Van Der Maas, and A. Posthuma De Boer. "A Low-Cost Reflectance FT-IR Microscope." Applied Spectroscopy 45, no. 7 (1991): 1149–52. http://dx.doi.org/10.1366/0003702914336002.

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5

Brimmer, Paul J., Peter R. Griffiths, and N. J. Harrick. "Angular Dependence of Diffuse Reflectance Infrared Spectra. Part I: FT-IR Spectrogoniophotometer." Applied Spectroscopy 40, no. 2 (1986): 258–65. http://dx.doi.org/10.1366/0003702864509619.

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An optical arrangement is described which allows diffuse reflectance infrared spectra to be collected by the use of a variety of incident angles and collection geometries. In the first phase of this study, the reflectance from a nonabsorbing powder and the intensity of the reststrahlen band in quartz were monitored as a function of optical geometry. The contribution of Fresnel reflectance was found to be very dependent on optical geometry, and the effect on the intensity of absorption bands in diffuse reflectance spectra is demonstrated. Based on these preliminary results, some suggestions for

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6

Matsuo, Kaori, and Katsuyuki Nakano. "Characterization of semiconductor oxides by IR diffuse reflectance spectroscopy." Applied Surface Science 41-42 (January 1990): 53–56. http://dx.doi.org/10.1016/0169-4332(89)90032-9.

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7

Chalmers, J. M., and M. W. Mackenzie. "Some Industrial Applications of FT-IR Diffuse Reflectance Spectroscopy." Applied Spectroscopy 39, no. 4 (1985): 634–41. http://dx.doi.org/10.1366/0003702854250329.

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8

Özgül-Yücel, Sevil, and Andrew Proctor. "Rice bran FFA determination by diffuse reflectance IR spectroscopy." Journal of the American Oil Chemists' Society 81, no. 3 (2004): 221–24. http://dx.doi.org/10.1007/s11746-004-0885-8.

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9

Vohra, S. T., F. Bucholtz, G. M. Nau, K. J. Ewing, and I. D. Aggarwal. "Remote Detection of Trichloroethylene in Soil by a Fiber-Optic Infrared Reflectance Probe." Applied Spectroscopy 50, no. 8 (1996): 985–90. http://dx.doi.org/10.1366/0003702963905240.

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A remote detection method for measuring the infrared reflectance from chlorinated hydrocarbons in soils is demonstrated. The method uses a 12-m-long, field-ruggedized, chalcogenide fiber to transmit IR reflectance data to a remotely located FT-IR spectrometer. Minimum observable signal corresponding to 250 ppm of trichloroethylene (TCE) in sand was measured with the system. Suggestions for improving the threshold detection limit are offered.

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10

Sullivan, David H., W. Curtis Conner, and Michael P. Harold. "Surface Analysis with FT-IR Emission Spectroscopy." Applied Spectroscopy 46, no. 5 (1992): 811–18. http://dx.doi.org/10.1366/0003702924124844.

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The technique of infrared emission spectroscopy (IRES) is reviewed and further examined in this study as a surface analysis tool. A system has been designed which allows simultaneous kinetic and in situ infrared emission analysis of catalyst surfaces. IRES spectra of several gas mixture/solid systems are obtained in order to examine sample preparation and spectra processing issues; these systems include Pt/Al2O3 exposed to CO and CO-NO mixtures, an oxidized copper plate, and a zeolite exposed to inert atmospheres. For the temperature range of importance to catalysis (300–600 K), IRES is limite

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11

Friese, Michael A., and Sujit Banerjee. "Lignin Determination by FT-IR." Applied Spectroscopy 46, no. 2 (1992): 246–48. http://dx.doi.org/10.1366/0003702924125456.

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The lignin content of pulp is determined from its diffuse reflectance infrared spectrum by an algorithm that calculates the degree of overlap between two spectra. The lignin:cellulose fraction correlates with kappa number, a titrimetric measure of lignin. Essentially no sample preparation is required, and the procedure is insensitive to variations in moisture content. The algorithm is able to detect changes induced by exposure of pulp to NO2.

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12

Holmgren, Allan, and Bo Nordén. "Characterization of Peat Samples by Diffuse Reflectance FT-IR Spectroscopy." Applied Spectroscopy 42, no. 2 (1988): 255–62. http://dx.doi.org/10.1366/0003702884428284.

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A Fourier transform infrared spectroscopic study of Sphagnum peat, Carex peat, and mixtures of these peat types is reported. Intensity values from selected wavenumber regions of the infrared spectra were correlated with calorific value, degree of decomposition, carbon, and nitrogen content, and content of amino acids and amino sugars, with the use of the method of partial least-squares modelling with latent variables (PLS). The application of this method is shown to give valuable information about properties of peat which have no easily measured quantitative relationship to the infrared spectr

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13

Derkacheva, O. Yu, and D. O. Tsypkin. "Lignin Content in Paper Fibers Assessed Using IR Reflectance Spectroscopy." Journal of Applied Spectroscopy 84, no. 6 (2018): 1066–71. http://dx.doi.org/10.1007/s10812-018-0588-6.

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14

Pasieczna-Patkowska, Sylwia, and Jarosław Madej. "Comparison of photoacoustic, diffuse reflectance, attenuated total reflectance and transmission infrared spectroscopy for the study of biochars." Polish Journal of Chemical Technology 20, no. 4 (2018): 75–83. http://dx.doi.org/10.2478/pjct-2018-0057.

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Abstract Four infrared spectroscopic techniques - photoacoustic (PAS), diffuse reflectance (DRS), attenuated total reflectance (ATR) and transmission (TS) - were evaluated for the qualitative analysis of the biochar obtained from willow feedstock during pyrolysis. Increase in pyrolysis temperature resulted in more aromatic and carbonaceous structure of biochars. These changes could easily be detected from Fourier transform infrared (FT-IR) spectral differences. The comparison of the spectra obtained by the four FT-IR techniques allowed to conclude that there are differences in the spectra acqu

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15

Forsskåhl, Ingegerd, Eija Kenttä, Pirjo Kyyrönen, and Olavi Sundström. "Depth Profiling of a Photochemically Yellowed Paper. Part II: FT-IR Techniques." Applied Spectroscopy 49, no. 2 (1995): 163–70. http://dx.doi.org/10.1366/0003702953963724.

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A strongly photo-yellowed paper, whose surface had been ground off to different depths, was subjected to various Fourier transform infrared (FT-IR) techniques, including attenuated total reflectance (ATR), diffuse reflectance (DRIFT), photoacoustic (PA), and potassium bromide pellet (KBr) spectroscopy. Depth profiling of the paper was accomplished by monitoring specific infrared bands which showed systematic and consistent changes caused by irradiation. The results from the different Fourier transform infrared techniques were compared.

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16

Archibald, D. D., C. E. Miller, L. T. Lin, and D. E. Honigs. "Remote Near-IR Reflectance Measurements with the Use of a Pair of Optical Fibers and a Fourier Transform Spectrometer." Applied Spectroscopy 42, no. 8 (1988): 1549–58. http://dx.doi.org/10.1366/0003702884429553.

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A commercial near-infrared (near-IR) Fourier transform (FT) spectrometer was modified to make remote reflectance measurements over a single optical fiber or pair of optical fibers. With the use of two low-hydroxyl fused-silica optical fibers and an InSb detector, the near-IR region from 0.92 to 2.15 μm was measurable. An InGaAs detector was used to obtain reflectance spectra over the region from 0.92 to 1.56 μm. With this detector, single-fiber reflectance and transmission measurements were possible and a variety of dual-fiber probe geometries could be easily employed. Dual-fiber geometries we

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17

Beiswenger, Toya N., Neal B. Gallagher, Tanya L. Myers, et al. "Identification of Uranium Minerals in Natural U-Bearing Rocks Using Infrared Reflectance Spectroscopy." Applied Spectroscopy 72, no. 2 (2017): 209–24. http://dx.doi.org/10.1177/0003702817743265.

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The identification of minerals, including uranium-bearing species, is often a labor-intensive process using X-ray diffraction (XRD), fluorescence, or other solid-phase or wet chemical techniques. While handheld XRD and fluorescence instruments can aid in field applications, handheld infrared (IR) reflectance spectrometers can now also be used in industrial or field environments, with rapid, nondestructive identification possible via analysis of the solid’s reflectance spectrum providing information not found in other techniques. In this paper, we report the use of laboratory methods that measu

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18

Profeti, Luciene PR, Françoise Hahn, Kouakou B. Kokoh, and Paulo Olivi. "Methanol electro-oxidation at Ptx Ru(1–x)Oy electrodes — An in situ FTIR study." Canadian Journal of Chemistry 85, no. 11 (2007): 923–29. http://dx.doi.org/10.1139/v07-098.

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In this work we investigated the nature of the intermediates adsorbed during the electrooxidation of methanol on PtxRu(1–x)Oy electrodes, where 0.5 < x < 0.9, prepared by the decomposition of polymeric precursors. Thin layer electrodes with different compositions were prepared directly on a gold substrate by thermal decomposition of ethylene glycol – citric acid solutions containing the precursor salts at 400 °C. In situ IR reflectance spectra were obtained using the SPAIRS (single potential alteration infrared reflectance spectroscopy) and SNIFTIRS (subtractively normalized interfacial

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19

Śliwińska, Smolinski, and Kucharski. "Simultaneous Analysis of Heavy Metal Concentration in Soil Samples." Applied Sciences 9, no. 21 (2019): 4705. http://dx.doi.org/10.3390/app9214705.

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The application of Fourier transform infrared spectroscopy to the simultaneous analysis of heavy metal concentration in soil samples was demonstrated in this paper. Two spectral techniques, namely, attenuated total reflectance (ATR) and diffuse reflectance (DRIFT), were applied and the whole infrared spectral region, i.e., far IR, mid IR, and near IR were considered in this work. Spectral data with reference to the results of laboratory analysis enabled the development of calibration partial least squares (PLS) models. The PLS models for the ATR near IR were characterized by a good fit and goo

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20

Leyden, D. E., R. S. Shreedhara Murthy, and J. P. Blitz. "Computer-Interfaced Temperature Controller for FT-IR Diffuse Reflectance Cell." Applied Spectroscopy 41, no. 5 (1987): 920–21. http://dx.doi.org/10.1366/0003702874448067.

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21

McArdle, Patrick, Karen Gilligan, Desmond Cunningham, and Alan Ryder. "Determination of the Polymorphic Forms of Bicifadine Hydrochloride by Differential Scanning Calorimetry—Thermogravimetric Analysis, X-Ray Powder Diffraction, Attenuated Total Reflectance—Infrared Spectroscopy, and Attenuated Total Reflectance—Near-Infrared Spectroscopy." Applied Spectroscopy 59, no. 11 (2005): 1365–71. http://dx.doi.org/10.1366/000370205774783322.

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The pharmaceutical compound bicifadine hydrochloride, which has been found to crystallize in two polymorphic forms, has been characterized by thermal analysis, X-ray powder diffraction (XRPD), infrared (IR) spectroscopy, and near-infrared (NIR) spectroscopy. A series of 22 sample mixtures of polymorph 1 and polymorph 2 were prepared and calibration models for the quantitation of these binary mixtures have been developed for each of the XRPD, attenuated total reflectance (ATR)-IR, and ATR-NIR analytical techniques. The quantitative results were obtained using a partial least squares (PLS) algor

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22

Miloudi, Lynda, Franck Bonnier, Kevin Barreau, et al. "ATR-IR coupled to partial least squares regression (PLSR) for monitoring an encapsulated active molecule in complex semi-solid formulations." Analyst 143, no. 10 (2018): 2377–89. http://dx.doi.org/10.1039/c8an00547h.

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23

Reddy, B. J., R. L. Frost, and W. N. Martens. "Characterization of conichalcite by SEM, FTIR, Raman and electronic reflectance spectroscopy." Mineralogical Magazine 69, no. 2 (2005): 155–67. http://dx.doi.org/10.1180/0026461056920243.

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AbstractThe mineral conichalcite from the western part of Bagdad mine, Bagdad, Eureka District, Yavapai County, Arizona, USA has been characterized by electronic, near-infrared (NIR), Raman and infrared (IR) spectroscopy. Scanning electron microscopy (SEM) images show that the mineral consists of bundles of fibres. Calculations based on the results of the energy dispersive X-ray analyses on a stoichiometric basis show the substitution of arsenate by 12 wt.% of phosphate in the mineral. Raman and IR bands are assigned in terms of the fundamental modes of AsO43− and PO43− molecules and are relat

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24

Marinkovic, Nebojsa S., Qi Wang, and Anatoly I. Frenkel. "In situdiffuse reflectance IR spectroscopy and X-ray absorption spectroscopy for fast catalytic processes." Journal of Synchrotron Radiation 18, no. 3 (2011): 447–55. http://dx.doi.org/10.1107/s0909049511005802.

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25

Rangamani, Anuradha G., Peter T. McTigue, and Bruce Verity. "Total internal reflectance IR spectroscopy of polypyrrole on a silicon electrode." Synthetic Metals 64, no. 1 (1994): 91–95. http://dx.doi.org/10.1016/0379-6779(94)90280-1.

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26

Derkacheva, O. Yu. "Determination of Cellulose Fiber Structure Using IR Reflectance Spectroscopy of Paper." Journal of Applied Spectroscopy 81, no. 6 (2015): 1037–43. http://dx.doi.org/10.1007/s10812-015-0047-6.

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27

Max, Jean-Joseph, Stéphane Daneault, and Camille Chapados. "1-Propanol hydrate by IR spectroscopy." Canadian Journal of Chemistry 80, no. 1 (2002): 113–23. http://dx.doi.org/10.1139/v01-198.

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The mid-IR attenuated total reflectance (mid-IRATR) spectra of a series of 1-propanol and water mixtures were obtained. Factor analysis (FA) applied to spectra gave the spectra of three principal species and their abundance: pure water, pure propanol, and a 1-propanol hydrate (1:1). When compared to the pure solvents, the hydrate propanol bands were modified which indicated that the valence bonds were perturbed. The assignment of the hydrate IR bands was made by comparing them with those of pure 1-propanol and pure water. No monomer was observed which indicated that all species were associate

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28

Hazel, G., F. Bucholtz, I. D. Aggarwal, G. Nau, and K. J. Ewing. "Multivariate Analysis of Mid-IR FT-IR Spectra of Hydrocarbon-Contaminated Wet Soils." Applied Spectroscopy 51, no. 7 (1997): 984–89. http://dx.doi.org/10.1366/0003702971941359.

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This article describes a series of mid-IR FT-IR reflectance spectroscopy measurements of hydrocarbon-contaminated wet soils. The eventual goal of this work is the development of an analysis tool suitable for real-time in situ underground measurements where a suitable reference spectrum is not available. Multivariate analysis of the resulting spectral data indicates that the strongly varying wet soil matrix and the absence of a suitable reference spectrum in the field do not render this measurement technique unfeasible as a means of realizing remote in situ chemical detection in wet soils. It w

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29

Gunde, M. Klanjšek, J. Kožar Logar, Z. Crnjak Orel, and B. Orel. "Application of the Kubelka-Munk Theory to Thickness-Dependent Diffuse Reflectance of Black Paints in the Mid-IR." Applied Spectroscopy 49, no. 5 (1995): 623–29. http://dx.doi.org/10.1366/0003702953964165.

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The Kubelka-Munk theory is applied to the thickness-dependent diffuse reflectance of black-painted samples in the mid-IR. The calculated absorption and scattering coefficients are wavenumber-dependent. The reflectance of the nonideal backing also shows spectral features, which is attributed to the reflections from the boundary surface between the scattering medium and the substrate. The spectral dependence of scattering penetration depth is caused by the scattering and absorption processes. At some wavenumbers, the diffuse reflectance is independent of layer thickness, because of particular va

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30

Snyder, Randy W. "Diffuse Reflectance FT-IR Analysis of Rosin Flux-Metal Oxide Interactions." Applied Spectroscopy 41, no. 3 (1987): 460–63. http://dx.doi.org/10.1366/0003702874449101.

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The use of diffuse reflectance Fourier transform-infrared spectroscopy for the analysis of rosin flux residues on metal oxide powders, after exposure to high-temperature soldering conditions, is examined. The flux is shown to solvate some metal ions to form metal-carboxylate salt complexes. The ability of nonactivated rosin flux to remove possible corrosion products of copper-tin/lead solder joint areas is discussed.

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31

Gabrieli, F., K. A. Dooley, M. Facini, and J. K. Delaney. "Near-UV to mid-IR reflectance imaging spectroscopy of paintings on the macroscale." Science Advances 5, no. 8 (2019): eaaw7794. http://dx.doi.org/10.1126/sciadv.aaw7794.

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Broad spectral range reflectance imaging spectroscopy (BR-RIS) from the near UV through the mid–infrared (IR) (350 to 25,000 nm or 28,571 to 400 cm−1) was investigated as an imaging modality to provide maps of organic and inorganic artists’ materials in paintings. While visible–to–near-IR (NIR) reflectance and elemental x-ray fluorescence (XRF) imaging spectroscopies have been used for in situ mapping, each method alone is insufficient for robust identification. Combining the two improves results but requires complex data processing. To test BR-RIS, image cubes from early Italian Renaissance i

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32

Ivanovski, Vladimir. "Polarized IR reflectance spectroscopy methods for the orientation of monoclinic single crystals: Tutton salts as a case example." Macedonian Journal of Chemistry and Chemical Engineering 33, no. 1 (2014): 27. http://dx.doi.org/10.20450/mjcce.2014.477.

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Investigation of polarized IR reflectance spectra of single crystals is important in the course of obtaining vibrational, optical and dielectric properties of solid state samples. Diffraction X-ray methods are usually employed for crystal orientation. In this work, two IR reflectance methods are proposed as a supplement in testing the orientation of the <em>b</em> crystal axis and by that the <em>ac</em> crystal plane, in respect to the morphology of monoclinic single crystals. The methods were tested on two Tutton salt single crystals: K<sub>2</sub>Ni(SO&lt

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33

Brimmer, Paul J., and Peter R. Griffiths. "Angular Dependence of Diffuse Reflectance Infrared Spectra. Part II: Effect of Polarization." Applied Spectroscopy 41, no. 5 (1987): 791–97. http://dx.doi.org/10.1366/0003702874448229.

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The magnitude of specular and diffuse Fresnel reflectance from powdered samples was investigated with the use of an FT-IR spectrogoniophotometer with wire-grid polarizers mounted in front of and behind the sample. Specular Fresnel reflectance maintains the polarization of the incoming infrared beam and can therefore be eliminated by crossing the orientation of the second polarizer relative to the first. For neat samples, diffuse Fresnel reflectance was found to be only slightly affected by the presence of the two polarizers. While specular Fresnel reflectance is affected by the optical geometr

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34

Van Every, Kenneth W., and Peter R. Griffiths. "Characterization of Diffuse Reflectance FT-IR Spectrometry for Heterogeneous Catalyst Studies." Applied Spectroscopy 45, no. 3 (1991): 347–59. http://dx.doi.org/10.1366/0003702914337137.

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35

Harthcock, M. A., L. A. Lentz, B. L. Davis, and K. Krishnan. "Applications of Transmittance and Reflectance Micro/FT-IR to Polymeric Materials." Applied Spectroscopy 40, no. 2 (1986): 210–14. http://dx.doi.org/10.1366/0003702864509529.

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Recent advances in FT-IR microsampling techniques have increased the specificity with which infrared spectra of microscopic samples or regions of microscopic samples can be obtained. In this paper, application of microsampling techniques to several problems involving polymeric materials will be presented. The technique using transmittance methods is shown to be a fast method for isolating two particles in a heterogeneous mixture and obtaining infrared spectra to conclusively identify the particles. The infrared absorption spectra of several layers of a multilayer polymer structure ranging in s

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36

Snyder, Randy W., and Stephen J. Fuerniss. "ATR/IR Spectroscopic Method for following Photo-Polymer Curing." Applied Spectroscopy 46, no. 7 (1992): 1113–16. http://dx.doi.org/10.1366/0003702924124187.

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A method for examining the photo-induced polymerization of photoresists and solder masks, at the substrate/photopolymer interface, using attenuated total reflectance (ATR) and infrared spectroscopy is discussed. The method is especially useful for dry film photoresists and gives information concerning cure levels affected by exposure dose and photoresist thickness. The photoprocessing of Vacrel® 8100 series solder mask and Riston® 3100 series photoresists from Dupont are used as examples.

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37

Marino, Nobuaki, Kiichirou Murai, and Yoshinori Kataora. "Characterization of Surface Contaminants by a Silver Film-Enhanced IR—Johnson Method." Applied Spectroscopy 51, no. 10 (1997): 1460–63. http://dx.doi.org/10.1366/0003702971939226.

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Characterization of nanometer-order organic contaminants on polymer film and silicon wafer surface has been investigated by a modified IR–Johnson method. We have proposed a silver film-enhanced IR–Johnson method that is useful for surface contaminant analysis. In the present method, organic traces are transferred from the surface of a polymer film or silicon wafer onto the KBr particles deposited with silver film, and then the KBr particles are analyzed directly by diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). Infrared absorption of organic traces was enhanced by the pr

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38

Xue, Gi, Shi-Ying Liu, Yi Jin, and Shan-Geng Jiang. "In Situ Studies of Coatings on Metal Wires by FT-IR External Reflectance Spectroscopy." Applied Spectroscopy 41, no. 7 (1987): 1172–75. http://dx.doi.org/10.1366/0003702874447455.

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Diffuse reflectance FT-IR spectroscopy was originally developed for particulate samples dispersed in KBr powders. Now, by using ellipsoid mirrors for scattered light collection, we have taken advantage of the collection efficiency of diffuse reflectance optics and have extended their use to an in situ study of coatings on metal wires and of the broken surface of a reinforcement wire as well. The result is that spectra of coatings on wire show good overall agreement with external reflection spectra of thin films. The technique we have developed has an advantage over infrared attenuated total re

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39

Assi, S., A. Guirguis, S. Halsey, S. Fergus, and J. L. Stair. "Analysis of ‘legal high’ substances and common adulterants using handheld spectroscopic techniques." Analytical Methods 7, no. 2 (2015): 736–46. http://dx.doi.org/10.1039/c4ay02169j.

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Three handheld spectrometers, near-infrared (NIR), Raman and attenuated total reflectance Fourier transform-infrared (ATR-FT-IR) spectroscopy, were used for the identification of ‘legal high’ model mixtures and Internet products.

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40

Zarnowiec, Paulina, Andrzej Mizera, Magdalena Chrapek, Mariusz Urbaniak, and Wieslaw Kaca. "Chemometric analysis of attenuated total reflectance infrared spectra ofProteus mirabilisstrains with defined structures of LPS." Innate Immunity 22, no. 5 (2016): 325–35. http://dx.doi.org/10.1177/1753425916647470.

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Proteus spp. strains are some of the most important pathogens associated with complicated urinary tract infections and bacteremia affecting patients with immunodeficiency and long-term urinary catheterization. For epidemiological purposes, various molecular typing methods have been developed for this pathogen. However, these methods are labor intensive and time consuming. We evaluated a new method of differentiation between strains. A collection of Proteus spp. strains was analyzed by attenuated total reflectance Fourier transform infrared (ATR FT-IR) spectroscopy in the mid-infrared region. A

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41

Banerjee, A. "Notizen: Investigation of the Crystallinity of the Modifications of Silica by their IR-Reflectance Spectra." Zeitschrift für Naturforschung A 48, no. 5-6 (1993): 741–42. http://dx.doi.org/10.1515/zna-1993-5-630.

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42

Bishop, J. L., M. D. Dyar, E. C. Sklute, and A. Drief. "Physical alteration of antigorite: a Mössbauer spectroscopy, reflectance spectroscopy and TEM study with applications to Mars." Clay Minerals 43, no. 1 (2008): 55–67. http://dx.doi.org/10.1180/claymin.2008.043.1.04.

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AbstractPhysical alteration of magnetite-bearing antigorite grains is investigated in this study using Mössbauer, visible/near-infrared (VNIR) and mid-IR spectroscopy coupled with scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) analyses. An expected decrease in grain size with grinding is observed using SEM. The HRTEM images illustrate that the nanophase-sized grains which adhere to larger grains have 7 Å antigorite patterns. Mössbauer spectroscopy shows the presence of antigorite, magnetite and an amorphous phase. Visible/near infrared spectra e

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43

Mysliwiec, Tami H., Anthony F. Tierno, and David J. Aurentz. "Characterization ofBacillus subtilissporulation and bacteriophage infection via FT-IR spectroscopy." Spectroscopy 23, no. 3-4 (2009): 165–74. http://dx.doi.org/10.1155/2009/456049.

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A comparative analysis on cultures from wild-type and sporulation mutants ofBacillus subtilisinfected with pseudotemperate spore-converting bacteriophages was performed to discern differences in the chemical functionality of the cellular population. Variations in the cell surface chemistry ofB. subtiliscultures were analyzed using attenuated total reflectance (ATR) Fourier transform infrared (FT-IR) spectroscopy of dried sample films on optical plates. Comparison of wild-type and phage infected cultures revealed an increase in the amount of aliphatic ester in the infected populations. Spectral

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44

Gandy, Amy S., Martin C. Stennett, and Neil C. Hyatt. "Surface Sensitive Spectroscopy Study of Ion Beam Irradiation Induced Structural Modifications in Borosilicate Glasses." MRS Proceedings 1514 (2013): 75–80. http://dx.doi.org/10.1557/opl.2013.357.

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ABSTRACTFe K edge X-ray absorption (XAS) and Fourier Transform Infra-Red (FT-IR) spectroscopies have been used to study potential structural modifications in sodium borosilicate glasses as a consequence of Kr+ irradiation. Glasses were doped with simulant waste elements and irradiated at room temperature with 450 keV Kr+ ions to a fluence of 2x1015 Kr+ ions cm-1. According to SRIM calculations, a damaged surface region approximately 400nm wide was produced. In order to probe only the damaged surface layer, XAS measurements were taken in total electron yield mode and FT-IR spectroscopy was cond

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BLITZ, J. P., and S. M. AUGUSTINE. "ChemInform Abstract: Characterization of Heterogeneous Catalysts by FT-IR Diffuse Reflectance Spectroscopy." ChemInform 26, no. 30 (2010): no. http://dx.doi.org/10.1002/chin.199530310.

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Hiroaki, I., N. Toyonori, and T. Eiji. "Measurement of pesticide residues in food based on diffuse reflectance IR spectroscopy." IEEE Transactions on Instrumentation and Measurement 51, no. 5 (2002): 886–90. http://dx.doi.org/10.1109/tim.2002.807791.

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Dunn, Brian C., Jonathan R. Marda, and Edward M. Eyring. "Stopped-Flow FT-IR Spectroscopy of Aqueous Solutions Using Attenuated Total Reflectance." Applied Spectroscopy 56, no. 6 (2002): 751–55. http://dx.doi.org/10.1366/000370202760077711.

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An apparatus for the study of solution phase kinetics using FT-IR spectroscopy has been developed. The observation chamber consists of an integrated tangential mixer-flow cell and a ZnSe element permitting attenuated total reflectance (ATR) measurements. The short optical pathlength afforded by ATR allows mid-IR observation of chemical reactions in aqueous solution, including the spectral region near the water bending vibration (1640 cm−1). High hydraulic backpressures required to force solution rapidly through a thin layer flow cell are not necessary with the ATR flow cell because the optical

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Trendafilova, Natacha, Georgi St Nikolov, Hans Mikosch, G�nter Bauer, and Robert Kellner. "IR-Dichroism of metal dithiocarbamate single crystals by attenuated total reflectance spectroscopy." Mikrochimica Acta 95, no. 1-6 (1988): 391–94. http://dx.doi.org/10.1007/bf01349795.

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Story, W. Charles, Tsutomu Masujima, Jim Liang, et al. "Diffuse Reflectance and Photoacoustic Fourier Transform Infrared Spectra of Silica Surfaces under Polarizable Gases." Applied Spectroscopy 41, no. 7 (1987): 1156–59. http://dx.doi.org/10.1366/0003702874447563.

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It has been reported that the use of an infrared transparent polarizable gas such as xenon enhances the FT-IR photoacoustic signal of some species adsorbed on a sample surface. Diffuse reflectance and photoacoustic FT-IR methods were used to obtain spectra of silica surfaces under helium, nitrogen, and xenon. Absence of the reported effect with both techniques is shown, and a tentative explanation for these results is given.

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Lechowicz, Łukasz, Wioletta Adamus-Białek, and Wiesław Kaca. "Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy and Artificial Neural Networks Applied to DifferentiateEscherichia colipapG+/papG-Strains." Journal of Spectroscopy 2013 (2013): 1–3. http://dx.doi.org/10.1155/2013/538686.

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Fimbriae are an important pathogenic factor ofEscherichia coliduring development of urinary tract infections. Here, we describe a new method for identification ofEscherichia colipapG+frompapG-strains using the attenuated total reflectance Fourier transform infrared Spectroscopy (ATR FT-IR). We applied artificial neural networks to the analysis of the ATR FT-IR results. These methods allowed to discriminateE. colipapG+frompapG-strains with accuracy of 99%.

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