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*Easy to Learn@GDC*
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📝 *Spectroscopy Technology*
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📚 Spectroscopy is the study of interaction between matter (i.e. molecules, atoms, nuclei) and radiated energy (i.e. electromagnetic radiation). Thus it is the study of how each of the above electromagnetic radiations interacts with molecules, compounds, atoms or even the nucleus.

✳️ *The Types of Spectroscopy*
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🏆 *Absorption-* This is the most common type of spectroscopy. Absorption occurs when the incident electromagnetic radiation is completely absorbed by the matter with which it interacts. Different electromagnetic radiation gets absorbed by different matter species such as atoms and molecules. Absorption is generally measured by monitoring the amount of radiation that is transmitted through the material. Common types of spectroscopy involving absorption are ultraviolet-visible spectroscopy (UV-Vis spectroscopy) or infrared spectroscopy (IR spectroscopy).

🏆 *Emission-* Emission is the phenomenon when matter itself radiates electromagnetic radiation. The phenomenon of emission may be triggered by an external source of energy such as flames (in case of flame photometry), or even electromagnetic radiation of higher energy (in case of fluorescence). Commonly emission is observed in fluorescence spectroscopy.

🏆 *Scattering or Diffraction and Reflection-* This type of spectroscopy depends upon how the incident electromagnetic radiation is scattered, diffracted or reflected. An example of scattering or diffraction is X-ray crystallography which employs high energy radiations of x-rays in order to examine the arrangement of atoms in crystals of proteins and molecules.

🏆 *Resonance or Coherance-* This spectroscopy employs electromagnetic radiation to couple to quantum states of matter in a coherant interaction. An example of this type of spectroscopy is Nuclear Magnetic Resonance spectroscopy (NMR spectroscopy).

🏆 *Impedance-* It involves the slowing or impeding of the electromagnetic radiation for example, refraction of light.

🏆 *Inelastic Scattering-* This phenomenon is observed when the wavelength of the incident radiation shifts after it interacts with matter. An example of inelastic scattering is observed in Raman spectroscopy.

✳️ *Various Spectroscopic Technique*
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1⃣ *Ultraviolet-Visible Spectroscopy (UV-Vis Spectroscopy)*
*Type of Electromagnetic Radiation-*
Ultraviolet and Visible spectrum
*Type of Matter Observed-* Electrons and electronic excitations
*Type of Interaction -* Absorbance

2⃣ *Nuclear Magnetic Resonance Spectroscopy (NMR Spectroscopy)*
*Type of Electromagnetic Radiation-*
Radiowaves
*Type of Matter Observed-* Nucleus
*Type of Interaction-* Resonance or Coherance

3⃣ *Infrared Spectroscopy (IR Spectroscopy)*
*Type of Electromagnetic Radiation-*
Infrared spectrum
*Type of Matter Observed-*
Molecular rotations, molecular vibrations, bonds between atoms
*Type of Interaction -* Absorbance (or transmittance)

4⃣ *Fluorescence Spectroscopy*
*Type of Electromagnetic Radiation-*
Ultraviolet and Visible spectrum
*Type of Matter Observed-*
Electrons and electronic excitations
*Type of Interaction -* Emission

5⃣ *Flame emission spectroscopy (Flame photometry)*
*Type of Electromagnetic Radiation-*
Ultraviolet and Visible spectrum
*Type of Matter Observed-* Atoms
*Type of Interaction -* Emission

6⃣ *X-Ray Diffraction Crystallography*
*Type of Electromagnetic Radiation-*
X-rays
*Type of Matter Observed-* Electron denisities
*Type of Interaction -* Diffraction or Scattering

7⃣ *Atomic Absorption and Emission Spectroscopy*
*Type of Electromagnetic Radiation-*
Ultraviolet and Visible spectrum
*Type of Matter Observed-* Atoms
*Type of Interaction -* Absorption or Emission
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*bhupeshsolankibsr@gmail.com
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