Ultraviolet Spectrometer

Ultraviolet Spectrometer

      Ultraviolet Spectrometer uses ultraviolet-visible spectroscopy to analyse metal ions, organic compounds and biological macro-molecules. These analysis is carried out in solution state only not in solid or gas state. It absorbs the light in the visible range which directly makes a change in colour of chemicals. In the visible region atoms, molecules and electromagnetic spectrum undergo electronic transitions. Fluorescence spectroscopy deals with transition from excited to ground state and absorption transition from ground to excited state.

Principle of Spectrometer:

      Molecules containing pi-electrons can observe energy in the form of visible light to excite electrons from low to high anti-bonding molecular orbitals.

Simple Principle of UV-Spectrometer

Applications:

• It has wide applications in the field of colouring metal solutions
• It is used in spacecrafts as payload to detect organic compounds in space for search of life.
• It detects organic water-soluble compounds, ethanol and biological compounds. 

NOTABLE SPACECRAFTS FOR THIS PAYLOAD: 

• Voyager-1
• Viking-1 Lander
• Curiosity Rover
• Mariner-6
• Mariner-7
• Mariner-9
• Mars Express
• Beagle-2 Lander
• Mars Reconnaissance Orbiter etc...

SOME PHOTOS OF UV-SPECTROMETER: