Which analytical technique measures the amount of light absorbed by a chemical substance as a function of its wavelength?

💡 Solution & Explanation

Spectrophotometry is an analytical chemistry technique that quantitatively measures the light absorbed by a chemical substance as a function of its wavelength. Titrimetry involves volumetric neutralization, polarography measures current-voltage relationships, and gravimetry relies on mass measurement of precipitates. It is widely used in pharmaceutical and biochemical testing laboratories.