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An improved method for preparing gravimetric standard gas mixtures of helium-4 in nitrogen

Method and apparatus for direct determination of helium-3 in natural gas and helium

Published Year

• 1990-1999 (2) *

Subject

• Gases (1)
• Helium (1)
• Helium--Measurement (1)
• Mass spectrometry (1)
• Mine gases--Analysis (1)
• Mixing (1)
• Nitrogen (1)

Author

• Emerson, David E. (2) *
• Bibawy, Nabil A. (1)
• Davidson, Thomas A. (1)

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