Difference between raman-spectroscopy and usual spectroscopy?

Thread starter timo1990
Start date Sep 15, 2012
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Difference Spectroscopy

In summary, Raman spectroscopy differs from usual spectroscopy in the type of information it provides, as it measures the scattering of light rather than the absorption or emission. It works by analyzing changes in wavelength caused by molecular vibrations in a sample, resulting in a unique spectrum that can identify chemical composition. Raman spectroscopy has advantages such as the ability to analyze solid and liquid samples and being non-destructive, but it is not as sensitive as usual spectroscopy and may be limited by strong fluorescence. It is commonly used in industries such as pharmaceuticals, forensics, materials science, and environmental analysis, as well as in research and development in various fields.

Sep 15, 2012

timo1990

What is the difference between raman-spectroscopy and usual spectroscopy?

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Sep 15, 2012

davenn

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timo1990 said:

What is the difference between raman-spectroscopy and usual spectroscopy?

hi there timo
welcome to PF

wiki has good eplanations of both types...

Rama --- http://en.wikipedia.org/wiki/Raman_spectroscopy

"standard" --- http://en.wikipedia.org/wiki/Spectroscopy

cheers
Dave

1. What is the main difference between Raman spectroscopy and usual spectroscopy?

The main difference between Raman spectroscopy and usual spectroscopy is the type of information they provide. While usual spectroscopy measures the absorption or emission of light by a sample, Raman spectroscopy measures the scattering of light by a sample. This scattering results in changes in the wavelength of the light, which can be used to identify the chemical composition of the sample.

2. How does Raman spectroscopy work?

Raman spectroscopy works by shining a monochromatic light, such as a laser, onto a sample. The scattered light is then collected and analyzed for changes in wavelength. These changes are caused by the vibration of molecules in the sample, which can provide information about the chemical bonds present. The resulting Raman spectrum is a unique fingerprint of the sample's chemical composition.

3. What are the advantages of Raman spectroscopy over usual spectroscopy?

Raman spectroscopy has several advantages over usual spectroscopy. Firstly, it can be used to analyze samples in both solid and liquid forms, while usual spectroscopy is limited to liquid samples. Additionally, Raman spectroscopy is non-destructive, meaning the sample does not need to be altered or destroyed in order to obtain a spectrum. This makes it a valuable tool for analyzing delicate or valuable samples.

4. Are there any limitations to Raman spectroscopy?

One limitation of Raman spectroscopy is that it is not as sensitive as usual spectroscopy. This means that it may not be able to detect very small amounts of a substance in a sample. Raman spectroscopy is also limited in its ability to analyze samples that have strong fluorescence, as the fluorescence can interfere with the Raman signal.

5. In what industries is Raman spectroscopy commonly used?

Raman spectroscopy has a wide range of applications and is commonly used in industries such as pharmaceuticals, forensics, materials science, and environmental analysis. It is also commonly used in research and development in fields such as chemistry, biology, and physics. The non-destructive nature and ability to analyze a variety of sample types make Raman spectroscopy a valuable tool in many industries.