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Principle
In solutions containing different-coloured substances the concentrations of the dyes can be anlysed by spectrometry without prior separation of the substances.
Using the integrated software the spectra of the pure dye solutions and mixtures thereof will be recorded. Calibration curves for each substances enable us to determine the quantity of that substance in the solution.
Benefits
- Experimental procedure without dangerous chemicals
- Modern, easy-to-use photospectrometer
- Simple evaluation by supplied software
Tasks
In a mixed solution containing fuchsine acid and patent blue V, the proporion of fuchsine acid is to be determined.
Learning objectives
- Photometry
- UV-VIS spectrometry
- Lambert-Beer's law
- Dyes
- Absorption of light
Necessary accessories
- Precision balance 620g/0.001g
Software integrated in spectrometer. Computer not provided.
Device name
Article no.
Quantity
Name
File name
File size
File type
(en) Versuchsbeschreibung
p3070501_en .pdf
File size 4.69 Mb
pdf
(ru) Versuchsbeschreibung
p3070501_ru .pdf
File size 4.91 Mb
pdf
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