Quinine in Tonic Water
7 Minute ReadIntroduction If you enjoy a gin & tonic in the evening after a hard day’s work, then you are consuming small amounts of the flavouring agent quinine. Look closely at […]
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Fluorescence Spectroscopy
Spooky Horse Chestnut Fluorescence!
2 Minute ReadHappy Halloween! Halloween is fast approaching 👻 so why don’t you try out this fun experiment with your kids? The next time you’re out in the woods, collect a few
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The Fluorescence Spectrum of Iodine
6 Minute ReadIntroduction In two earlier posts on this site we recorded the absorption spectrum of molecular iodine I2 with some simple instrumentation. The first section outlined the basic theory giving rise
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Highlighter Pen Fluorescence
5 Minute ReadMeasuring the fluorescence from highlighter pens is always an interesting educational experiment to try and is very popular in schools and colleges to demonstrate the basic principles of fluorescence and spectra. Usually, green, blue or violet laser pointers are used to excite the sample.
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Fluorescence
9 Minute ReadWhat is Fluorescence? Before we can consider what is fluorescence in scientificterms, we must mention the general process of luminescence. Luminescence is defined as any emission of light (electromagnetic or