How to use a spectrometer?

HOW A SPECTROMETER WORKS

A polychromatic source provides “white” light which is extracted by a monochromator at the user’s desired wavelength. The intensity of the radiation is measured after it has passed through the analysed sample. This intensity is compared to a reference value. The output value is the result of this comparison.

1 mm wide
glass
10 mm wide
glass
10 mm wide
"quartz"
50 mm wide
glass
10 mm wide
glass, small volume
10 mm wide
glass, very small volume
10 mm wide
plastic, shrinked

Working principle of a spectrophotometer


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