Chemistry: analytical and immunological testing – Hydrogen – per se
Patent
1986-03-04
1988-08-23
Lacey, David L.
Chemistry: analytical and immunological testing
Hydrogen, per se
436 39, 436171, G01N 2162, G01N 3300, G01N 3318
Patent
active
047660813
ABSTRACT:
The present invention relates to a method for the qualitative and quantitative measurement, by means of microwave spectrometry, of the hydrogen isotopes, protium, deuterium and tritium, in a sample which contains hydrogen, water or a mixture thereof, and to an apparatus for implementing the method. Because it is a prerequisite for the use of microwave spectrometry that the isotopes be present in the form of water, and it is advantageous to have impurities in the sample in the form of active or inactive foreign molecules that do not interfere, the present process converts the sample into the gas and/or vapor form. The water vapor component of the sample is subjected to microwave spectrometry and a first measured value compiled, the hydrogen component of the sample is converted to water and then subjected to microwave spectrometry and a second measured value is compiled, whereupon the two measured values are summed to provide the total isotope spectrum. Only the non-condensable gases must be removed. Processing of samples according to the method of the present invention permits the use of microwave spectrometry for the determination of the isotope spectrum in a hydrogen/water mixture.
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Johnston Jill
Kernforschungszentrum Karlsruhe GmbH
Lacey David L.
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