Double beam UV-Visible Spectrometer

A double beam UV-VIS spectrometer is a type of spectrophotometer used to measure the absorption of ultraviolet (UV) and visible (VIS) light by a sample.

Double beam UV-VIS spectrometers offer high accuracy and precision in absorption measurements, making them valuable tools in various fields such as chemistry, biochemistry, environmental science, and materials science.

Working Principle

The key feature of a double beam spectrometer is its optical setup, which splits the incoming light beam into two paths: the sample beam and the reference beam. The sample beam passes through the sample being analyzed, while the reference beam passes through a reference material (typically the solvent or a similar material without the analyte).

After passing through the sample and reference cells, the light beams are directed to a detector. The detector measures the intensity of light transmitted through the sample and reference cells at each selected wavelength.

Specifications of the instrument

• Company –Shimadzu
• Model –UV- 1800 (115 VAC)
• Wavelength Range – 190 – 1100 nm
• Source Lamp – Deuterium; Tungsten Halogen
• Bandwidth – 1.0 nm
• Sample Types – Liquids