Absorption spectroscopy is an analytical technique used to measure the concentration of a substance in a sample by detecting the light absorbed by that substance when it is exposed to a specific wavelength range. The technique is based on the principle that different molecules absorb light at specific wavelengths, resulting in a characteristic absorption spectrum. Here's a more detailed breakdown of the process: 1. **Sample Interaction**: A light source emits light that passes through a sample containing the substance of interest.
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