Colorimetry and spectrophotometry vary in that colorimetry utilizes fixed wavelengths that are only observable in the visible spectrum, but spectrophotometry can use wavelengths from a larger range.

We can utilize spectrophotometry and colorimetry to identify compounds based on their absorption and emission characteristics. Furthermore, this is a simple method for determining the concentration of a colored sample. Despite the fact that molecules have no color, if we can create a colorful complex from them through a chemical reaction, that substance can be employed in these approaches as well. Furthermore, energy levels are distinct and linked with a molecule. As a result, discrete energy transitions between states will only occur at specific discrete energies. We quantify the absorption and emission resulting from these changes in energy levels using these approaches. As a result, all spectroscopic methods are built on this foundation.

What is the definition of Spectrophotometry?

The process of determining how much a chemical substance absorbs light by measuring the intensity of light as a beam of light passes through a sample solution is known as specttrophotometry. Furthermore, the spectrophotometer is the tool utilized in this method. It consists of two major components: a spectrometer that creates light of a certain hue and a photometer that measures light intensity.

A cuvette in a spectrophotometer is where we may insert our liquid sample. The liquid sample will have a color, and as a light beam passes through it, it will absorb the complementary hue. The concentration of the chemical in the sample is related to the color intensity of the sample. As a result, the amount of light absorbed at a specific wavelength may be used to calculate the concentration.

Colorimetry vs. Spectrophotometry: What’s the Difference?

Colorimetry and spectrophotometry are both quantitative methods for determining how much material is present in a sample. Colorimetry and spectrophotometry vary in that colorimetry utilizes fixed wavelengths that are only observable in the visible spectrum, but spectrophotometry can use wavelengths from a larger range.

Furthermore, a colorimeter quantifies color by measuring the three major color components of light (red, green, and blue), but a spectrophotometer detects the precise color in human-visible light wavelengths. Furthermore, a colorimeter measures the quantity of light that passes through a sample, whereas a spectrophotometer measures the amount of light that goes through it. As a result, there is a distinction between colorimetry and spectrophotometry.