How should I prepare a suitable solution to find absorbance using a uv spectroscopy device?
I have obtained tio2 nanoparticles (anatase) and I want to prepare the powder I obtained by making a suitable solution.
note: the device cannot read the values correctly at all
You can't make a solution of an insoluble material. A spectroscopy of a suspended material is a different story.
Absorbance spectroscopy is performed on transparent solutions. You might be able to get some useful information, however, if you make a very dilute suspension so that some UV light can get through (absorbance
You have to disperse the powder until you get a clear stable colloid (you need to see thought the suspension). As a qualitative indicator of the colloid suitability for UVVIS spectroscopy you can test Tindall effect upon irradiation with a laser beam
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