FT-IR Diffuse reflectance

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In summary, to convert from diffuse reflectance units to an absorption spectrum in FT-IR spectroscopy, you will need to use the Kubelka-Munk theory and the equation A= (1-R)²/2R.
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sounouhid
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Hello every one
How can i convert a spectrum plotted in Diffuse reflectance units to an absorption spectrum in FT-IR spectroscopy
knowing that I've a diposed a thin layer of TiO2 into an ITO substrate.
thank you
 
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!To convert from a diffuse reflectance unit to an absorption spectrum in FT-IR spectroscopy, you will need to use the Kubelka-Munk theory. This theory states that the absorbance of a sample is proportional to the concentration of the absorber as well as the diffused reflectance of the sample. You can then use the equation A= (1-R)²/2R to calculate the absorbance of the sample, where R is the diffuse reflectance of the sample. Once you have the absorbance values, you can plot them on a graph to create an absorption spectrum.
 

What is FT-IR Diffuse Reflectance?

FT-IR Diffuse Reflectance is a spectroscopic technique that measures the amount of infrared light reflected from a sample. It is used to identify the chemical composition of materials and determine their physical properties.

How does FT-IR Diffuse Reflectance work?

FT-IR Diffuse Reflectance works by shining infrared light onto a sample and measuring the amount of light that is reflected. This reflected light is then analyzed to determine the chemical bonds present in the sample, which can provide information about the sample's composition.

What are the advantages of using FT-IR Diffuse Reflectance?

Some advantages of using FT-IR Diffuse Reflectance include its non-destructive nature, ability to analyze a wide range of samples, and its high sensitivity. It also requires minimal sample preparation and can provide rapid results.

What types of materials can be analyzed using FT-IR Diffuse Reflectance?

FT-IR Diffuse Reflectance can analyze a variety of materials, including solids, liquids, and powders. It is commonly used in the analysis of polymers, minerals, pharmaceuticals, and food products.

Are there any limitations to using FT-IR Diffuse Reflectance?

One limitation of using FT-IR Diffuse Reflectance is its inability to provide depth information about a sample, as it only measures the surface of the material. It also requires a reference material for accurate analysis and may not be suitable for highly scattering or absorbing samples.

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