Introduction Dietary supplements are part of our everyday lives these days. Their function is to maintain a regular daily intake of essential minerals, elements and
Introduction Many minerals fluoresce in their natural state. The Fluorescent Mineral Society in the USA lists around 200 specimens with some fine images of minerals
Introduction Here’s what happens when a highly fluorescent compound, in this case sodium fluorescein, dissolves in water and a UV lamp shines on the solution:
Introduction If you enjoy a gin & tonic in the evening after a hard day’s work, then you are consuming small amounts of the flavouring
Happy 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
Introduction In two earlier posts on this site we recorded the absorption spectrum of molecular iodine I2 with some simple instrumentation. The first section outlined
Measuring 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.
What is Fluorescence? Before we can consider what fluorescence actually is in scientific terms, we must mention the general process of luminescence. Luminescence is defined
