🛠️ Invention or technique

Atomic absorption spectroscopy

Espectroscopía de absorción atómica

Date
1953-1955 · confidence high
Place
Division of Chemical Physics, CSIRO, Melbourne, Victoria, Australia
Credited to
Alan Walsh
People
👤 Alan Walsh1916–1998
Field
Matter & energy

What it is

A method for measuring the concentration of metals by measuring how much light from a lamp made of the same element the vaporised sample absorbs. It became the standard technique for metal analysis in chemistry, medicine and the environment.

What it led to

  • analysis of heavy metals in water and food
  • clinical diagnosis of trace elements
  • the analytical-instrument industry in Australia

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