How does the colorimeter work?

A colorimeter is an instrument that compares the amount of light getting through a solution with the amount that can get through a sample of pure solvent. A colorimeter contains a photocell which is able to detect the amount of light passing through the solution under investigation.

What is the working range of colorimeter?

400 to 700 nm
Changeable optics filters are used in the colorimeter to select the wavelength which the solute absorbs the most, in order to maximize accuracy. The usual wavelength range is from 400 to 700 nm. If it is necessary to operate in the ultraviolet range then some modifications to the colorimeter are needed.

What is the use of colorimeter?

Colorimeters are used to detect colour and determine the solutions concentration, i.e. when a wavelength is passed through a sample, some of the light is absorbed and some passes through. It is the wavelengths of light that pass through that are detected.

What kind of measurement is a colorimeter?

⇒ A Colorimeter involves the measurement of Color and is the widely used method for finding the concentration of biochemical compounds. It Measures absorbance and wavelength between 400 to 700 nm (nanometer) i.e. from the visible spectrum of light of the electromagnetic spectrum.

How is colorimetry used in the real world?

It is used extensively for identification and determination of concentrations of substances that absorb light.

How is the amount of light absorbed in a colorimeter determined?

The amount of light reflected is kept constant to measure I o and I t. Colorimeter is based on two fundamental laws of photometry. We have discussed them below: According to this law the amount of light absorbed is proportional to the solute concentration present in solution.

How are colorimeters used in mobile health systems?

1 Smartphones for rapid kits. Smartphone-based colorimeters are most commonly used for rapid kits toward mobile health systems as they can take very reproducible images and instantly conduct color analysis. 2 Color Measurement. Colorimetry is the science of correlating color to human perception. 3 Fabric appearance testing