Attenuated Total Reflection-Infrared Nanofluidic Chip with 71 nL Detection Volume for in Situ Spectroscopic Analysis of Chemical Reaction Intermediates

2012 ◽  
Vol 84 (7) ◽  
pp. 3132-3137 ◽  
Author(s):  
Engin Karabudak ◽  
Barbara L. Mojet ◽  
Stefan Schlautmann ◽  
Guido Mul ◽  
Han J. G. E. Gardeniers
Keyword(s):  
Chemical Reaction ◽  
Spectroscopic Analysis ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Reaction Intermediates ◽  
Detection Volume ◽  
Nanofluidic Chip

scholarly journals Toward Chalcogenide Platform Infrared Sensor Dedicated to the In Situ Detection of Aromatic Hydrocarbons in Natural Waters via an Attenuated Total Reflection Spectroscopy Study

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2449
Author(s):  
Marion Baillieul ◽  
Emeline Baudet ◽  
Karine Michel ◽  
Jonathan Moreau ◽  
Petr Němec ◽  
...  
Keyword(s):  
Natural Water ◽  
Natural Waters ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Infrared Sensor ◽  
Reflection Spectroscopy ◽  
Infrared Spectral ◽  
Micro Sensor ◽  
In Situ Detection

The objective of this study is to demonstrate the successful functionalization of the surface of a chalcogenide infrared waveguide with the ultimate goal of developing an infrared micro-sensor device. First, a polyisobutylene coating was selected by testing its physico-chemical compatibility with a Ge-Sb-Se selenide surface. To simulate the chalcogenide platform infrared sensor, the detection of benzene, toluene, and ortho-, meta- and para-xylenes was efficaciously performed using a polyisobutylene layer spin-coated on 1 and 2.5 µm co-sputtered selenide films of Ge28Sb12Se60 composition deposited on a zinc selenide prism used for attenuated total reflection spectroscopy. The thickness of the polymer coating was optimized by attenuated total reflection spectroscopy to achieve the highest possible attenuation of water absorption while maintaining the diffusion rate of the pollutant through the polymer film compatible with the targeted in situ analysis. Then, natural water, i.e., groundwater, wastewater, and seawater, was sampled for detection measurement by means of attenuated total reflection spectroscopy. This study is a valuable contribution concerning the functionalization by a hydrophobic polymer compatible with a chalcogenide optical sensor designed to operate in the mid-infrared spectral range to detect in situ organic molecules in natural water.

Novel Routes to Cu(salicylaldimine) Covalently Bound to Silica:  Combined Pulse EPR and in Situ Attenuated Total Reflection-IR Studies of the Immobilization

2003 ◽  
Vol 42 (8) ◽  
pp. 2559-2571 ◽  
Author(s):  
Eamonn F. Murphy ◽  
Davide Ferri ◽  
Alfons Baiker ◽  
Sabine Van Doorslaer ◽  
Arthur Schweiger
Keyword(s):  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Ir Studies ◽  
Pulse Epr ◽  
Covalently Bound

In situ attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy combined with non-negative matrix factorization for investigating the synthesis reaction mechanism of 3-amino-4-amino-oxime furazan

2018 ◽  
Vol 10 (48) ◽  
pp. 5817-5822 ◽  
Author(s):  
Tianlong Zhang ◽  
Ting He ◽  
Chunhua Yan ◽  
Xinyu Gao ◽  
Junxiu Ma ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Reaction Mechanism ◽  
Ftir Spectroscopy ◽  
Matrix Factorization ◽  
Fourier Transform Infrared ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Synthesis Reaction ◽  
Non Negative Matrix Factorization

In situ ATR-FTIR combined with non-negative matrix factorization for investigating the synthesis reaction mechanism of 3-amino-4-aminoximefurazan.

scholarly journals Crystallinity of regenerated cellulose from [Bmim]Cl dependent on the hydrogen bond acidity/basicity of anti-solvents

RSC Advances ◽  
2017 ◽  
Vol 7 (65) ◽  
pp. 41004-41010 ◽  
Author(s):  
Zhaosheng Fan ◽  
Jianbo Chen ◽  
Wenji Guo ◽  
Fang Ma ◽  
Suqin Sun ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Fourier Transform ◽  
Ftir Spectroscopy ◽  
Molecular Diffusion ◽  
Diffusion Processes ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Regenerated Cellulose ◽  
Hydrogen Bond Acidity

Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy was used to monitor the molecular diffusion processes of four anti-solvents in situ.

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