Emission Spectroscopy Blog Posts
7 Minute ReadIntroduction This post is to help the home experimenter identify the spectra of some common light sources that we all come across in the home. It gives us an indication […]
Common Light Sources in Your Home Read More »
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
The Fluorescence Spectrum of Iodine Read More »
4 Minute ReadIntroduction Spectrum tubes are a very useful way to introduce science students to the study of the interaction of light photons with matter and the subject of optical spectroscopy. They
6 Minute ReadIntroduction Here is the emission spectrum of hydrogen gas in a discharge tube recorded at moderate spectral resolution: Fig. 1 The Spectrum of Hydrogen Gas in a Discharge Tube It
The Hydrogen (and Deuterium) Emission Spectrum Read More »
9 Minute ReadIntroduction In this post the emission spectra of the Noble Gases are presented. The noble gases constitute the last group (Group 18) in the Periodic Table of the elements. Emission
Emission Spectra of the Noble Gases Read More »
3 Minute ReadIntroduction The above image is a sample of high purity caesium chloride crystals (CsCl). They are in a sealed glass ampoule and were prepared under high vacuum. At first glance,
Caesium Chloride and the F Centre Read More »
6 Minute ReadIntroduction The chemical element Selenium. Atomic number 34. Chemical symbol Se. The quirky title I chose for this post – an element that can’t make up its mind – refers
Selenium: An element that can’t make up its mind Read More »
7 Minute ReadIntroduction Does anyone remember having glow-in-the-dark stars, planets and constellation stickers that as kids we would stick to our bedroom walls and ceiling? I don’t think I am the only
Phosphorescent Paints Read More »
7 Minute ReadIntroduction There are a number of technical constraints to consider when selecting a spectrometer for a particular application, whether this involves purchasing a commercial model from the wide range of
Factors Affecting Spectrometer Performance Read More »
3 Minute ReadThis is a quick post that examines the spectral line emission changes that occur when a Mercury-Argon (Hg-Ar) gas discharge lamp is switched on and warms up. I used the
Mercury Lamp Spectral Changes at Start Up Read More »
