Question

why the instruments in the infrared region differ from those used in uv/ visible region​

Answer 1

Answer:

UV/vis absorption spectroscopy typically measures absorption as a function of wavelength in nm, while IR spectroscopy typically measures transmittance as a function of wavenumber in cm-1. Fluorescence spectroscopy measures the photons that are emitted from an excited sample.

Explanation:

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Answer 2

Answer:

An infrared spectrophotometer is an instrument that passes infrared light through an organic molecule and produces a spectrum that contains a plot of the amount of light transmitted on the vertical axis against the wavelength of infrared radiation on the horizontal axis.

Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nm to 400 nm ... Technology for VUV instrumentation was largely driven by solar astronomy for many decades.

Explanation:

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