New diagnostic method for monitoring plasma reactor walls: Multiple total internal reflection Fourier transform infrared surface probe

2001 ◽  
Vol 72 (8) ◽  
pp. 3260-3269 ◽  
Author(s):  
Anna R. Godfrey ◽  
Saurabh J. Ullal ◽  
Linda B. Braly ◽  
Erik A. Edelberg ◽  
Vahid Vahedi ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Total Internal Reflection ◽  
Diagnostic Method ◽  
Plasma Reactor ◽  
Fourier Transform Infrared ◽  
Internal Reflection ◽  
Surface Probe

scholarly journals Erratum: Can attenuated total internal reflection-Fourier transform infrared be used to understand the interaction between polymers and water? A hyperspectral imaging study

2017 ◽  
Author(s):  
S. Mukherjee ◽  
J. Martínez-González ◽  
C. Stallard ◽  
D. Dowling ◽  
A. Gowen
Keyword(s):  
Fourier Transform ◽  
Hyperspectral Imaging ◽  
Total Internal Reflection ◽  
Imaging Study ◽  
Fourier Transform Infrared ◽  
Internal Reflection ◽  
Original Version ◽  
Attenuated Total Internal Reflection ◽  
Before And After

The original article contained errors in a number of symbols within the text. Extraneous characters were added before and after the symbol. The original version is now corrected and is available at https://doi.org/10.1255/jsi.2017.a3.

Novel Attenuated Total Reflection Fourier Transform Infrared Microscopy Using a Gem Quality Diamond as an Internal Reflection Element

2005 ◽  
Vol 59 (10) ◽  
pp. 1236-1241 ◽  
Author(s):  
Sanong Ekgasit ◽  
Pimthong Thongnopkun
Keyword(s):  
Fourier Transform ◽  
Total Internal Reflection ◽  
Fourier Transform Infrared ◽  
Normal Incidence ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Internal Reflection ◽  
The Novel ◽  
Infrared Microscope ◽  
Ft Ir

A novel technique for attenuated total reflection Fourier transform infrared (ATR FT-IR) spectral acquisition by an infrared microscope with a gem-quality faceted diamond as an internal reflection element (IRE) is introduced. Unlike conventional IREs, the novel diamond IRE has a sharp tip configuration instead of a flat tip configuration. Light at normal incidence was coupled into the diamond while the transflected radiation from the diamond was collected through the table facet by the built-in 15× Cassegrainian objective. The number of reflections in the novel diamond IRE equals two. The evanescent field generated under total internal reflection at the pavilion facet was exploited for ATR spectral acquisition of materials attached to the IRE. The observed ATR spectra were compared to those obtained via a traditional zinc selenide IRE.

Analysis of Counterfeit Coated Tablets and Multi-Layer Packaging Materials Using Infrared Microspectroscopic Imaging

2016 ◽  
Vol 22 (3) ◽  
pp. 649-655 ◽  
Author(s):  
Taryn L. Winner ◽  
Adam Lanzarotta ◽  
André J. Sommer
Keyword(s):  
Fourier Transform ◽  
Total Internal Reflection ◽  
Spectroscopic Imaging ◽  
Fourier Transform Infrared ◽  
Dosage Forms ◽  
Internal Reflection ◽  
Packaging Materials ◽  
Tablet Coating ◽  
Infrared Spectroscopic Imaging ◽  
Molecular Information

AbstractAn effective method for detecting and characterizing counterfeit finished dosage forms and packaging materials is described in this study. Using attenuated total internal reflection Fourier transform infrared spectroscopic imaging, suspect tablet coating and core formulations as well as multi-layered foil safety seals, bottle labels, and cigarette tear tapes were analyzed and compared directly with those of a stored authentic product. The approach was effective for obtaining molecular information from structures as small as 6 μm.

scholarly journals Can attenuated total internal reflection-Fourier transform infrared be used to understand the interaction between polymers and water? A hyperspectral imaging study

2017 ◽  
Author(s):  
S. Mukherjee ◽  
J. Martínez-González ◽  
C. Stallard ◽  
D. Dowling ◽  
A. Gowen
Keyword(s):  
Fourier Transform ◽  
Hyperspectral Imaging ◽  
Total Internal Reflection ◽  
Univariate Analysis ◽  
Fourier Transform Infrared ◽  
Internal Reflection ◽  
Polymeric Surfaces ◽  
Attenuated Total Internal Reflection ◽  
Polymeric Biomaterials ◽  
Corrected Version

This study investigates the potential use of attenuated total internal reflection-Fourier transform infrared (ATR-FT- IR) imaging, a hyperspectral imaging modality, to investigate molecular level trends in the interaction of water with polymeric surfaces of varying hydrophobicity. The hydrophobicity of two categories of polymeric biomaterials is characterised using contact angle (CA) measurements and their relationship with the band area of the OH stretching νs vibration of water over time is presented. This is supported with correlations between CA data and single wavenumber intensity values (univariate analysis). Multivariate analysis of the spectra captured at the OH stretch for all polymers is carried out using principal component analysis to study the spatial variation in the interaction between the polymeric surfaces and water. Finally, a comparison between the univariate and multivariate strategies is presented to understand the interaction between polymeric biomaterials and water. This is a corrected version of the original paper; this corrected version was published on 15 May 2017. Please see Erratum at https://doi.org/10.1255/jsi.2017.a3e.

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