FTIR probe, fiber optic

MA Thomson, PJ MeUing, and AM Slepski. Real Time Monitoring of Isocyanate Chemistry Using a Fiber-Optic FTIR Probe. Polymer Preprints 42 310-311, 2001. 

Real-Time Monitoring of Isocyanate Chemistry using a Fiber-Optic FTIR Probe... 

The use of coupled onhne spectroscopies (ATR-FTIR/Raman) for the development and the monitoring of industrial chemical processes was demonstrated by Wiss and ZiUan [14], For the investigation of two types of reaction, respective fiber optical spectroscopic probes were installed in a commercial reaction calorimeter. The authors pointed out that such a setup is more appropriate for industrial applications than bypass systems for sampling, and can be used in a pilot plant or production plant without major modification of the available equipment. 

There are many examples of second-order analyzers that are used in analytical chemistry including many hyphenated spectroscopic tools such as FTIR-TGA, IR-microscopy, as well as GC-MS, or even two-dimensional spectroscopic techniques. Another hyphenated technique that is being developed for the study of solid-state transitions in crystalline materials is dynamic vapor sorption coupled with NIR spectroscopy (DVS-NIR).26 DVS is a water sorption balance by which the weight of a sample is carefully monitored during exposure to defined temperature and humidity. It can be used to study the stability of materials, and in this case has been used to induce solid-state transitions in anhydrous theophylline. By interfacing an NIR spectrometer with a fiber-optic probe to the DVS, the transitions of the theophylline can be monitored spectroscopically. The DVS-NIR has proven to be a useful tool in the study of the solid-state transitions of theophylline. It has been used to identify a transition that exists in the conversion of the anhydrous form to the hydrate during the course of water sorption. 

L. F. De La Torre-Quintana, S. P. Hemandez-Rivera, Characterization of thermal inkjet technology TNT deposits by fiber optic-grazing angle probe FTIR spectroscopy. Sensors, and Command, Control, Communications, and Intelhgence (C3I) Technologies for Homeland Security and Homeland Defense IV Edward M. Carapezza Ed., Proc. SPIE, 5778, 543-552 (2005). 

R. S. Williams, on-Site, Nondestructive Mid-IR Spectroscopy of Plastics in Museum Objects using a Portable FTIR Spectrometer with Fiber Optic Probe, Mat. Res. Soc. Symp. Proc., 462, 25-30 (1997). 

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