Analysis of Glass Fragments
To compare glass samples based on their refractive index (RI) and their trace magnesium content by atomic absorption spectrophotometry (AA).
Glass fragments (half-inch square) from bottles and from automobiles. Find a junk yard and obtain samples from car headlamps and windshields.
A set of liquid refractive index standards; magnesium metal; pure lanthanum nitrate; concentrated hydrofluoric acid solution; concentrated hydrochloric acid; concentrated nitric acid
Standard Reference Material
optical microscope; sodium vapor lamp; microscope slides; flame atomic absorption spectrophotometer; ultrasonic bath; plastic centrifuge tubes
Inductively Coupled Plasma (ICP) - Emission Spectrophotometry (OES)
(planned for next edition)