Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Infrared spectroscopy total internal reflection cell

An infrared spectrum is a plot of percent radiation absorbed versus the frequency of the incident radiation given in wavenumbers (cm ) or in wave length ( xm). A variation of this method, diffuse reflectance spectroscopy, is used for samples with poor transmittance, e.g. cubic hematite crystals. Increased resolution and sensitivity as well as more rapid collection of data is provided by Fourier-transform-IR (FTIR), which averages a large number of spectra. Another IR technique makes use of attenuated total reflectance FTIR (ATR-FTIR) often using a cylindrical internal reflectance cell (CIR) (e.g. Tejedor-Tejedor Anderson, 1986). ATR enables wet systems and adsorbing species to be studied in situ. [Pg.141]

Numerous books cover the topic of sampling methods in infrared spectroscopy (see, e.g., references [10-12]), and a detailed description of all the various alternatives is beyond the scope of this chapter. Instead, we will focus on the two sampling methods that are most commonly employed in food analysis applications, namely, the use of transmission cells for recording the spectra of solutions and the total internal reflection technique, also known as attenuated total reflectance (ATR). Readers who wish to learn about the techniques not covered here may consult the references cited above. [Pg.113]


See other pages where Infrared spectroscopy total internal reflection cell is mentioned: [Pg.1948]    [Pg.109]    [Pg.699]    [Pg.1948]    [Pg.315]    [Pg.273]    [Pg.101]    [Pg.6]    [Pg.226]    [Pg.26]    [Pg.226]   
See also in sourсe #XX -- [ Pg.138 ]




SEARCH



Cells spectroscopy

Cells, infrared spectroscopy

Infrared Spectroscopy internal reflectance

Infrared cells

Infrared internal reflectance

Infrared internal reflection

Infrared reflectance spectroscopy

Infrared reflective

Internal Reflection Infrared Spectroscopy

Internal reflectance

Internal reflectance spectroscopy

Internal reflection spectroscopy

Internally reflected

Reflectance cells

Reflectance spectroscopy

Reflectance total internal

Reflection infrared spectroscopy

Reflection spectroscopy

Reflective cells

Reflectivity spectroscopy

Reflectivity total

Spectroscopy total reflectance

Total internal reflection

Total internal reflection spectroscopy

Total reflection

© 2024 chempedia.info