Time-resolved attenuated total reflectance spectroscopy

Figure 3.13. (d) Time-resolved attenuated total reflectance (ATR) Fourier transform infrared (FTIR) spectra collected during arsenic (As) oxidation on random stacked bimessite (RSB). Peaks represent the oxidation product, arsenate, adsorbed at the RSB surface. (Z ) As oxidation kinetic data collected on RSB (O) on hexagonal bimessite (H-Bi) ( ) during a batch experiment. Inset shows the peak height versus time plot for the spectra seen in the top panel, illustrating the higher time resolution achievable with rapid-scan ATR-FUR spectroscopy. (From Borda and Sparks, unpublished data, 2006.)... [Pg.117]

TIME-RESOLVED ATTENUATED TOTAL REFLECTION UV-VISIBLE SPECTROSCOPY... [Pg.26]

Hallinan DT Jr, Elabd YA (2007) Difusion and sorption of methanol and water in Nafion using time-resolved Fourier transform infrared-attenuated total reflectance spectroscopy. J Phys Chem B 111 13221-13230... [Pg.219]

Real-time attenuated total reflectance FTIR spectroscopy was used to follow the conversion during acrylate polymerisations by measuring the presence of functional groups at finite depths from the ciystal surface. By varying the film thickness, the reactivity of multiacrylates could be spatially resolved. These results were compared with results from different photocalorimetric studies. 22 refs. USA... [Pg.104]

Abstract This chapter describes recent breakthroughs in the instrumentation for far-ultraviolet (FUV) spectroscopy. The key technique is attenuated total reflection (ATR) that is frequently used in the infrared region. ATR technique decreases the absorbance of samples with strong absorptivity because of the penetration depth of the evanescent wave less than 100 nm. Therefore, ATR-FUV spectroscopy realizes the measurement of FUV spectra of samples in liquid and solid states. Some applications (in-line monitoring, characterization of polymers and time-resolved spectroscopy in sub-microsecond) are introduced in terms of instrumentation. This chapter explains not only the detail of the instruments but also the mathematical correction for ATR spectra to separate the absorption and refraction indices. [Pg.17]

Keywords Attenuated total reflection (ATR) Internal reflection element Kramers-Kronig transformation Time-resolved ATR-FUV spectroscopy... [Pg.17]

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