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UV-vis spectrophotometer

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Contact details

Jager, W.F.
Applied Sciences (TNW), DCT/Nano Struc. Materials
Julianalaan 136, 2628 BL Delft
Tel : +31 (0)15 27 82626
E-mail : W.F.Jager@tudelft.nl
Website : Open website

General Information


UV-vis spectrophotometer


Faculty of Applied Sciences, Julianalaan 136, 2628 BL Delft

Key words:

UV-vis, wavelength, transmission, reflection, UV, spectrophotometry

Measured quantity:

A spectrophotometer consists of two instruments, namely a spectrometer for producing light of any selected color (wavelength), and a photometer for measuring the intensity of light. The instruments are arranged so that liquid in a cuvette can be placed between the spectrometer beam and the photometer. The amount of light passing through the tube is measured by the photometer. The photometer delivers a voltage signal to a display device, normally a galvanometer. The signal changes as the amount of light absorbed by the liquid changes.

Main application:

UV/Vis spectroscopy is routinely used in the quantitative determination of solutions of transition metals and highly conjugated organic compounds. It is possible to do so because transition metals are often colored because of the possibility of d-d electronic transitions within the metal atoms.

Instrument specification


Uvikon XL

Wavelength range:
180 - 900 nm

Scan speed:
5 - 5000 nm/min

True symmetrical double beam optics. High energy throughput.