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86/1632 Atomic absorption spectrophotometer, 'Model AA4', metal, designed by Sir Alan Walsh, Melbourne, Victoria, Australia, 1953, made by Varian Techtron Ltd, Melbourne, Victoria, Australia, 1966-1967. Click to enlarge.

Atomic absorption spectrophotometer

Made
When a metal is heated in a flame it emits specific frequencies of light - like a signature. Scientific instruments called spectrometers detect the presence of metals in samples by detecting these signatures.

Alan Walsh was a CSIRO scientist who improved on spectrometers.

He knew that metals that have been heated also absorb the same 'signature' frequencies of light that they emit. One day while gardening, he realised that, by shooting a measured beam of light at the correct frequency into …

Summary

Object No.

86/1632

Object Statement

Atomic absorption spectrophotometer, 'Model AA4', metal, designed by Sir Alan Walsh, Melbourne, Victoria, Australia, 1953, made by Varian Techtron Ltd, Melbourne, Victoria, Australia, 1966-1967

Physical Description

Atomic Absorption Spectrophotometer designed to measure and analyse traces of metallic elements in a wide range of substances. In nine parts, the main components are a gas burner to vaporise samples, a lathode lamp of specific wave length, monochromator and indicator unit.

Production

Notes

The spectrophotometer was made by Varian Techtron in Melbourne Australia. It was developed by Alan Walsh and CSIRO.

History

Notes

The instrument was donated to Sydney Technical College, Ultimo, about a year before it was passed on to the Museum as it was not suitable for teaching purposes. It was donated to the college by a small company, probably when it was upgrading to a better system, but the name of the company was not passed on with the instrument.

Source

Credit Line

Gift of School Of Applied Science, 1986

Acquisition Date

20 November 1986

Cite this Object

Harvard

Atomic absorption spectrophotometer 2021, Museum of Applied Arts & Sciences, accessed 20 September 2021, <https://ma.as/58712>

Wikipedia

{{cite web |url=https://ma.as/58712 |title=Atomic absorption spectrophotometer |author=Museum of Applied Arts & Sciences |access-date=20 September 2021 |publisher=Museum of Applied Arts & Sciences, Australia}}