Spectrophotometer

A spectrophotometer is a device used to measure the intensity of light at different wavelengths. It is commonly used in scientific research, quality control, and various laboratory applications.

In the supply class Optical Instruments, Test Equipment, Components And Accessories, spectrophotometers are categorized as instruments used for measuring and analyzing light. They are designed to measure the amount of light absorbed or transmitted by a sample at different wavelengths, allowing for the determination of the sample's concentration or the presence of specific substances.

Spectrophotometers consist of a light source, a monochromator or a filter to select specific wavelengths, a sample holder, and a detector to measure the intensity of light. They can be used in various fields such as chemistry, biology, physics, environmental science, and pharmaceuticals.

Some common types of spectrophotometers include:

1. UV-Visible Spectrophotometer: This type of spectrophotometer measures the absorption or transmission of light in the ultraviolet (UV) and visible (Vis) regions of the electromagnetic spectrum. It is widely used in chemical analysis, biochemistry, and pharmaceutical research.

2. Infrared (IR) Spectrophotometer: IR spectrophotometers measure the absorption or transmission of infrared light. They are used to analyze organic and inorganic compounds, identify functional groups, and determine the structure of molecules.

3. Atomic Absorption Spectrophotometer (AAS): AAS measures the absorption of light by atoms in the gas phase. It is commonly used in environmental analysis, clinical chemistry, and metal analysis.

4. Fluorescence Spectrophotometer: This type of spectrophotometer measures the emission of light from a sample after it has absorbed light of a specific wavelength. It is used to study the fluorescence properties of various substances, such as fluorescent dyes, proteins, and nucleic acids.

Spectrophotometers are essential tools in scientific research and laboratory analysis, providing accurate and precise measurements of light absorption or transmission. They play a crucial role in various industries, including pharmaceuticals, environmental monitoring, food and beverage, and materials science.