Two lectures on the development and present position of chemical analysis by emission spectra (1911)
Twyman, Frank · London, A. Hilger · leaf 26
ly with a thirdrod of Iron or Carbon steel (insulated by pushing over one end of it apiece of ordinary rubber tube). Removal of this rod strikes the arc,and the observer at the spectroscope is able to state whether or no thesample contains an important quantity of Nickel or Chromium. Withthe aid of… … Lantern Slide No. 10. Several of these instruments have been in use by Messrs. Vickersworks at Sheffield for over two years, and they report : The Spectrograph supplied by Adam Hilger Ltd., has now been in constantdaily use in the Steel Warehouse for nearly twelve months and has proved a mostuseful…
Spectrum analysis
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