Question

The source of light in UV spectrophotometric ​

Answer 1

Answer:

UV-VIS Spectrophotometer. The UV-Visible spectrophotometer uses two light sources, a deuterium (D2) lamp for ultraviolet light and a tungsten (W) lamp for visible light. After bouncing off a mirror (mirror 1), the light beam passes through a slit and hits a diffraction grating.

Explanation:

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Answer 2

The source of light in the UV spectrophotometer commonly used is the Deuterium lamp.

• In analytical chemistry, ultraviolet-visible spectroscopy is used to detect the amount of light that is absorbed by colored substances or chemical compounds.
• A deuterium arc lamp is a gas-discharge light source that works under low pressure.
• When a continuous spectrum in the UV range is required, it is frequently utilized in spectroscopy.
• A tungsten lamp is utilized as a visible light frequency range source in a spectrophotometer.
• Hence, the Deuterium lamp is used to measure UV range and tungsten lamp for visible light range in the spectrophotometer.