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File:SpectroscopyResearch 012.jpg

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Summary

Description This spectrometer ionized the gas at extremely low pressure and measured the mass of the resulting ions. Molecules were identified by their molecular weight and by the molecular weights of their dissociation products. After the gas was introduced, the instrument proceeded automatically to produce a mass spectrum record.
Date
Source National Institute of Standards and Technology
Author National Institute of Standards and Technology
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Public domain
This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.

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Public domain
This image is in the public domain in the United States because it is a work of the United States Federal Government, specifically an employee of the National Institute of Standards and Technology, under the terms of Title 17, Chapter 1, Section 105 of the US Code.

English  日本語  македонски  Nederlands  +/−

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29 September 1948

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current19:34, 11 March 2014Thumbnail for version as of 19:34, 11 March 20145,993 × 4,779 (23.85 MB)wikimediacommons>NISTResearchLibrary
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